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Breaking: Albright Discovers That After Covering Buildings at Parchin With Pink Tarps, Iranians Now Removing Tarps!

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Alternative representation of Iran moving pink tarpaulins around at the Parchin military site. (Detail from a photo by azkid2It on Flickr under Creative Commons license)

It seemed that David Albright and his Institute for Science and International Security had reached a new low when on August 24 they wowed the world with their analytical powers by explaining to us the meaning of Iran draping buildings at the disputed Parchin military site with pink tarpaulins. Yesterday, Albright and associates did their best to keep the Pink Panic at Parchin going, as they breathlessly revealed that Iran is now actually REMOVING THE TARPS!

As I have maintained all along, if Iran has carried out work at this site to develop a neutron trigger based on high explosives, as they have been accused, then the steel chamber in which the work was carried out is quite likely to have been rendered radioactive through the process of neutron activation and no amount of cleaning the chamber or the surrounding building or surrounding soil can hide that. That means that the tarps themselves (along with the earlier soil-moving exercises) have been a feint to give Albright and the press something to chase while those who favor an attack on Iran continue to agitate for “action”. We see from the most recent photos that the building in which the explosives chamber is believed to be housed still stands after the tarp has been removed from its roof. Should inspectors gain access to the site, their primary objective remains unchanged from pre-tarp days. They first need to determine if the chamber is still inside the building. If the chamber is still present, they need to examine it for evidence of neutron activation or any other radioactive contamination arising from the research the Iranians have been accused of carrying out.

AP’s George Jahn, ISI’s David Albright Re-run Allegations of Iranian Bomb Calculations

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I can calculate the destructive power of nuclear explosions, too, with this handy tool from 1962.

Breathlessly calling today’s story an “AP Exclusive“, George Jahn sticks to his usual routine of depending on “diplomats” to leak information on Iran and then using David Albright to cast the information in a way calculated to make it look as though Iran has made new, major breakthroughs in efforts to develop a nuclear weapon. Today’s effort is more transparent than a pink tarp, with Jahn’s article itself finally getting around to noting that everything claimed to be an “exclusive” in the article was already noted in IAEA’s November, 2011 report.

Jahn’s opening:

The U.N. atomic agency has received new intelligence that Iran has moved further toward the ability to build a nuclear weapon by advancing its work on calculating the destructive power of an atomic warhead, diplomats tell The Associated Press.

And then, of course, we need Albright to add just the right spin:

“You want to have a theoretical understanding of the working of a nuclear weapon that is then related to the experiments you do on the various components,” said David Albright, whose Washington-based Institute for Science and International Security is a frequent go-to source on Iran for Congress and other U.S. government branches. “The two go hand-in-hand.”

Such computer mock-ups typically assess how high explosives compress fissile warhead material, setting off the chain reaction that results in a nuclear explosion. The yield is normally calculated in kilotons.

Now that we have been properly scared into believing there is new and damning evidence against Iran, let’s see what Jahn finds when he goes back to the November, 2011 IAEA report:

The IAEA first outlined suspicions in November that Iran was working on calculating the yield of a nuclear weapon, as part of a 13-page summary of Iran’s suspected nuclear weapons work that it said was based on more than 1,000 pages of research and intelligence from more than 10 member nations.

It said then that “the modeling studies alleged to have been conducted in 2008 and 2009 by Iran … (are) of particular concern,” adding that the purpose of such studies for calculating anything other than nuclear explosion yields is “unclear to the agency.”

Albright, of the Institute for Science and International Security, said such computer-run modeling is “critical to the development of a nuclear weapon.”

So Jahn admits that this “new” information is basically just a re-run of what was stated in November by the IAEA. I guess Jahn and his handlers decided that not enough attention had been paid to this particular nugget of information, and so a new “exclusive” was needed in order to focus more attention on it. That is a very brave move after being punked so badly by the pink tarps.

At least Jahn got one sentence correct:

Any new evidence of Iranian research into nuclear weapons is likely to strengthen the hand of hawks in Israel who advocate a military strike on Iran.

Next week, perhaps Jahn and Albright can provide analysis of all Google searches from Iran on “nuclear weapons”. I’m sure Jahn’s “diplomat” friends can provide those for us.

Persians Punk Photo Pretenders: Parchin Pretty in Pink

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Detail from the photo carried in CNN’s story showing the pink tarp over the building said to contain the blast chamber.

In order to make the case for a military attack on Iran, those who advocate war need to show that Iran is engaged in developing a nuclear weapon. There will be a new IAEA report this week, and we already know that this report will try to whip up excitement around what is already known: Iran’s installation of additional centrifuges for enrichment of uranium to 20% has continued, and Iran now has increased its capacity for such enrichment. What press accounts of the enrichment situation will gloss over is the fact that IAEA inspectors are present at all of Iran’s enrichment sites and that all material is accounted for. That means that in order to accuse Iran of taking 20% enriched uranium and subjecting it to further enrichment to the 90%+ that is needed for weapons, one would have to postulate a secret site, unknown to IAEA inspectors, where Iran could take raw uranium ore all the way to weapons grade.

With the rogue enrichment route to a military attack unlikely to gain footing, war advocates also accuse Iran of other activities aimed at developing a nuclear weapon. A favorite target for those accusations is the military site at Parchin, where one particular building has been separated out and accused of holding a high explosives blast chamber where Iran is accused of carrying out research aimed at developing a neutron trigger device for a nuclear bomb. Despite a very thorough debunking of this theory by b at Moon of Alabama, where it was shown that the chamber was much more likely to be used in production of nanodiamonds than neutron triggers, the accusations continued. In May, George Jahn of AP provided ridiculous “proof” of work on a trigger device by publishing a cartoon (drawn from a real photograph!) and description of the chamber. These new allegations from Jahn even included a claim that there was a neutron detector on the outside of the chamber so that neutron flux from the explosions inside the chamber could be monitored. I showed that this allegation meant that if such work had been carried out, the steel chamber itself would have been made radioactive through the process of neutron activation. This radioactivity would be present throughout the thickness of the steel and therefore could not be removed by a surface cleaning.

Despite the fact that the steel chamber (and possibly even the structural steel of the surrounding building) would be radioactive in a way that could not be cleaned, we have for months been deluged with accusations that Iran is “cleaning” the Parchin site. After this process had gone on for some time, I began to describe it as a game of cat and mouse in which it appears that Iran is having quite a bit of fun at the expense of those who are making allegations about the Parchin site. The primary target of Iran’s pranks in Parchin is David Albright, of the Insitute for Science and International Security. Despite no known expertise in intelligence gathering by photo analysis (and that comment on lack of expertise comes from someone who previously was a CIA photo analyst) we have had multiple accounts from Albright of Iran “cleaning” the Parchin site to remove evidence of their work on a trigger device.

I have responded to most of Albright’s reports, but chose not to respond to his report of August 1, where he declared that Iran had finished its cleanup work at Parchin. That report appears to have been operational for only a brief period, however, as a report issued on August 24 shows images from August 15. In this new report, additional activity at Parchin has taken place and the suspect building is now draped with a tarp that is bright pink.

In keeping with the usual pattern for these accusations, CNN has breathlessly repeated Albright’s analysis. It hardly seems necessary to point out that the point I have been making all along still stands. The most important element of any inspection at Parchin will be the high explosive chamber itself. Iran cannot “scrub” it of neutron activation. That means that if sufficient neutron trigger work was carried out in the chamber to make it radioactive, Iran will need to remove and destroy the chamber. Whether there is a pink tarp over the building or not is irrelevant to the issue of whether the chamber still exists.

The only way Iran can top the comedic spectacle of the pink tarp is to paint the ground outside the building to mimic Albright’s yellow comment balloons and font with a note along the lines of “Please do not look at this building”.

Albright Attempts to Deflect Neutron Activation Issue at Parchin

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On May 15, I pointed out that the claims associated with the cartoon published by George Jahn of AP purporting to depict a high explosives chamber used by Iran at Parchin (this is a new link for the cartoon, the AP link in the May 15 post no longer works for me) and in a report by David Albright claiming that Iran has taken actions aimed at cleansing the Parchin site were rendered baseless by the likelihood that if the accused work on a neutron initiator for a nuclear weapon had indeed been carried out at Parchin, then the chamber would be rendered radioactive throughout the thickness of its steel by the process of neutron activation. Yesterday, Albright published even more photos of the Parchin site that he claims document further cleansing activity and in the discussion section of his report he finally addressed the issue of neutron activation. In order to make the issue of neutron activation go away, Albright is now proposing that  the uranium deuteride presumed to be present in the explosion would produce too low a flux of neutrons to produce appreciable neutron activation of the chamber’s steel, even though Jahn is claiming that the Iranians placed a neutron detector outside the chamber, presumably to measure the neutron flux that passed through its steel walls.

Here is the relevant portion of a 2009 report by Albright describing the neutron initiator:

If the data in this document are correct and the descriptions of the work are accurate, then this report appears to be describing a plan to further develop and test a critical component of a nuclear weapon, specifically a neutron initiator made out of uranium deuteride (UD3), which when finished (and subsequently manufactured) would most likely be placed at the center of a fission bomb made from weapon-grade uranium. This type of initiator works by the high explosives compressing the nuclear core and the initiator, producing a spurt of neutrons as a result of fusion in D-D reactions. The neutrons flood the core of weapon-grade uranium and initiate the chain reaction.

Albright goes on to describe the issue of producing neutrons and measuring their production:

The measurement of the neutrons emitted by this UD3 source would be the hardest measurement Iran would need to make in developing a nuclear weapon. This assumes that Iran believes it cannot do a full-scale nuclear test, although it would be expected to do a “cold test” of the full device as a way to gain confidence the nuclear weapon would perform as expected. . . The timing of the explosion and resulting shock waves would need to be perfect in order to get enough fusion to create a spurt of neutrons in a reliable manner at exactly the right instant. The experiment itself is very difficult to do. There are relatively few neutrons emitted in a brief period of time and there is a lot of noise from the electronics that interferes with the neutron measurements.

It should be noted here that although Albright is discussing a “cold test”, that means the test is carried out without the weapons grade uranium which the initiator sets off in the nuclear explosion. The uranium deuteride is still present as the primary part of the initiator and is producing the neutrons which are to be measured. Although Albright does claim that few neutrons are produced in the explosion in the latter part of the description, he refers to a “spurt” of neutrons that “flood” the weapons grade uranium in the earlier portion. The fact remains that in such an experiment, significant quantities of uranium are present and there would be neutrons released into the steel of the chamber the entire time the uranium is present, not just during the brief explosion.

As further support for the uranium deuteride initiator being the primary focus of the narrative promoted by Albright and Jahn, it should be kept in mind that Jahn mentions that the chamber is “equipped with” “a neutron detection system outside the explosion chamber to measure neutron emissions”. Jahn goes on to quote another expert who posits the use of uranium in the experiments with explosives: Read more →

Iran’s Cat and Mouse Game at Parchin Continues; Albright Takes Bait Yet Again

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After a disappointing ending to yesterday’s final session of the P5+1 talks in Moscow, we now must deal with even more of the cat and mouse game Iran is playing at Parchin. I have posted on this issue a number of times, so I won’t go back into the complete details of what is going on, but the primary issue here is that the West has accused Iran of carrying out work at the Parchin military site that is aimed toward developing a trigger for a nuclear bomb. Specifically, Iran is accused of using a high explosives chamber to research the use of uranium in high explosions to generate the neutrons needed to trigger a nuclear bomb. “Western diplomats”, aided by gullible reporters and especially by David Albright of the Institute for Science and International Security are now claiming that Iran is trying to scrub the site of evidence from this work.

The problem is that it is impossible to scrub evidence of this sort of work. As I showed in this post, if Iran actually carried out the work for which they are accused, the steel chamber where the explosions occurred and all of the structural steel in the surrounding building would be radioactive due to neutron activation. This would not be surface contamination of the steel but would be distributed throughout the entire thickness of the steel. Therefore, if Iran carried out the accused work, the only way to hide the evidence would be to destroy the steel tank and the building in which it is housed.

In a game of cat and mouse, Iran destroyed buildings nearby the building in which the steel tank is said to be housed and did extensive earthmoving work in outlying areas away from the building. Albright dutifully took that bait and said this work was evidence of cleansing activity and did not mention that the chamber and its surrounding building were still standing and should still carry all of the radioactive earmarks of the accused activity.

Today, Albright has taken the next round of bait offered up by Iran. More earthmoving activity is seen in new photos and there are even new puddles to go along with the first puddles Albright found.

Here is Albright’s description of the new activity: Read more →

Transcribing Obama Administration Iran Spin, Sanger Advances False “Breakout” Capability

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Marcy will be along later to discuss the shiny thong thing aspect of David Sanger’s New York Times article where he was awarded today’s transcription prize by the Obama administration and allowed to “break” the story in which the US for the first time admitted its role in cyberwarfare against Iran’s nuclear program. What I want to concentrate on here is how in putting forward the cyberwarfare story, Sanger unquestioningly accepts the administration’s framing that Iran is just a short “breakout” away from having multiple nuclear weapons.

Consider this key paragraph:

These officials gave differing assessments of how successful the sabotage program was in slowing Iran’s progress toward developing the ability to build nuclear weapons. Internal Obama administration estimates say the effort was set back by 18 months to two years, but some experts inside and outside the government are more skeptical, noting that Iran’s enrichment levels have steadily recovered, giving the country enough fuel today for five or more weapons, with additional enrichment.

All Iran needs is “additional enrichment” for “five or more weapons”. That assumption is false on many levels. First, because Iran’s enrichment activities are closely monitored by onsite IAEA inspectors, any activity aimed at above the 20% level which is their current upper bound would be detected quickly. That statement is backed up even by David Albright, who has been busy fanning the anti-Iran rhetoric on the Parchin front. Adding further doubt to a rapid breakout of enrichment is that even in this same article, Sanger notes that Iran’s centrifuge technology is old and unreliable. Albright supports that observation as well, and notes that installation of additional capability has been slowed by technical issues that don’t seem related to cyberattacks.

The second major flaw in Sanger’s transcription above is that more than just “additional enrichment” is needed. The whole cat and mouse game at Parchin is playing out because in addition to enrichment of uranium to weapons grade, Iran will need technology for initiating the nuclear chain reaction that results in the weapon being detonated. Sanger makes no mention at all of this technical barrier for which there is no evidence that Iran has made an appropriate breakthrough.

Heck, the “enough uranium for five bombs” framing requires us to count the material enriched to only 3.5%. That makes it surprising the US and Israel aren’t claiming that Iran has enough uranium for an unlimited number of bombs if you count the uranium in the ground that they haven’t mined yet.

Roja Heydarpour, writing at The Back Channel, brings us this bit of reassurance from David Albright that any Iranian attempts at enrichment to weapons grade would be caught quickly: Read more →

Parchin Game of Cat and Mouse Escalates: Razed Buildings, Earthmoving Probably Don’t Affect Controversial Chamber

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For a brief period yesterday afternoon, initial news reports had me thinking that perhaps proof had finally emerged that Iran has indeed carried out work on a nuclear weapon and was taking actions in an attempt to hide the after-effects of that work. As new details emerged, however, it became more clear that an elaborate game of cat and mouse is being played out between Iran and those who accuse them of weapon development, but overall there still seems to be no conclusive proof that weapon development at the controversial Parchin site has been carried out.

That is a pattern that has played out several times now. “Diplomats” provide anonymous information to a reporter in Vienna on new accusations about nuclear weapon development work in Iran. The first version of the story put out by the reporter contains only a vague accusation but is delivered with a sensationalized headline suggesting that new and important evidence supports the conclusion that Iran is carrying out work at Parchin aimed at developing a neutron trigger device for a nuclear weapon . Subsequent expansion of the article reveals that the “evidence” is much weaker than initially portrayed and that technical details tend to contradict the accusations for the large part.

Until yesterday, that pattern had played itself out three times since March, each with George Jahn of AP playing the role of the reporter in Vienna. First, there was the claim in March that Iran was trying to clean the Parchin site to remove evidence of work on a trigger device. It took several weeks after the initial claim, but finally a satellite image purporting to show evidence of “washing” the building at Parchin was produced in early May when David Albright displayed satellite images showing puddles in the parking lot outside the suspect building. Of course, Albright’s claim of “washing” away the radioactivity is ludicrous, as traces would remain, especially if the wash water is simply allowed to pool in the parking lot of the building. Albright and Jahn did not give up, however, and Jahn subsequently came up with a cartoon depicting the chamber (it’s even the same color as the real chamber!). The huge hole in those accusations, though, is that if the accused neutron trigger work with uranium were indeed being carried out at Parchin, then the process of neutron activation would have resulted in both the structural steel of the chamber itself and most likely the structural steel of the building housing the chamber being radioactive throughout the thicknesses of the steel. This would mean that Albright’s claims that Iran could “cleanse” the chamber and the building by grinding and washing surfaces were impossible. Instead, in order to clean the site:

The only way that Iran would be able to hide evidence of work on a neutron trigger device at Parchin would be to dismantle and remove the entire chamber. It most likely would be necessary to raze the entire building as well, since the structural steel in the building surrounding the chamber also likely would have been made radioactive by the neutrons.

Jahn’s third sensational headline followed by less sensational details related to the finding of traces of uranium enriched to 27% rather than 20% at the enrichment site at Qom instead of at Parchin, but this still fits the overall pattern.

Another aspect of attempts to clean evidence of work with radioactivity is removal of the upper layers of soil.

Yesterday, Fredrik Dahl of Reuters took over George Jahn’s role as the reporter in Vienna to release a sensational headline only for the real story to fall short of the accusations (apologies to Jahn for my initial–now deleted–tweets on this revelation, which I attributed to him when I reacted first to the headline and only later noticed the story was from Dahl and not Jahn). I have counted at least five versions of Dahl’s story as it was updated through the day yesterday and this morning. Here is complete article as it appeared in its initial form: Read more →

George Jahn Once Again Grants Anonymity for Dubious Iran Accusation

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Just under two weeks ago, AP’s George Jahn released the infamous cartoon around which he built a dubious nest of mostly anonymous charges that Iran had conducted work toward developing a neutron trigger device for nuclear weapons, using an explosive containment chamber at the Parchin military site. Jahn further repeated anonymous claims from “diplomats” that satellite imagery showed activity claimed to be Iran “cleaning” the site to remove traces of radioactivity.

It is simply impossible to “clean” radioactivity from a steel chamber in which uranium has been used to generate neutrons, as the neutrons would result in making the entire thickness of the steel chamber radioactive, as I showed in this post. The only way that Iran would be able to hide evidence of work on a neutron trigger device at Parchin would be to dismantle and remove the entire chamber. It most likely would be necessary to raze the entire building as well, since the structural steel in the building surrounding the chamber also likely would have been made radioactive by the neutrons.

Since negotiations between Iran and the P5+1 countries will continue next month in Moscow, those who prefer a war with Iran now must find new areas in which to accuse Iran of weapons work. George Jahn dutifully stepped up to play his role in this process again today, granting anonymity to “diplomats” who make a vague accusation that Jahn dressed up into a highly sensational headline that is backed up by few facts and then rendered essentially meaningless when he goes further into the information. At the AP’s site, Jahn’s article carries the headline “APNewsBreak: Higher enrichment at Iranian site“. The Washington Post decided that headline wasn’t incendiary enough, and so their version reads “APNewsBreak: Diplomats say UN experts find enrichment at Iranian site closer to arms level“.

The story itself is quite short. It opens:

 Diplomats say the U.N. nuclear agency has found traces of uranium at Iran’s underground atomic site enriched to higher than previous levels and closer to what is needed for nuclear weapons.

Wait a minute. This whole thing is about “traces” of uranium enriched to a higher level. Missing from the entire article is any detail of how much material was found or to what level the uranium was enriched. The highest level of enrichment currently declared by Iran is 20%, which the press in the recent past has been describing as only a short “technical step” away from the the 90%+ needed for a nuclear weapon.

The next two paragraphs from Jahn basically render his entire story moot:

The diplomats say the finding by the International Atomic Energy Agency does not necessarily mean that Iran is secretly raising its enrichment threshold.

They say the traces could be left during startup of enriching centrifuges until the desired level is reached. That would be a technical glitch only.

So, in other words, these “diplomats” are doing their best to create a crisis over something that is a mere “technical glitch” and represents an insignificant amount of material. Of course, for those who only see the headline, especially the one on the Post’s website, the idea will have been planted that Iran is cheating on its declared enrichment program and secretly producing material that is ready to be placed into a weapon.

As I pointed out in this post, all of these incendiary press reports about Iran and uranium enrichment overlook a very important basic set of facts: Read more →

Amano: Agreement With Iran Reached, “Will Be Signed Quite Soon”

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It appears that the hopeful signals being sent out by Iran yesterday ahead of the visit by IAEA Director General Yukiya Amano have been followed through. Speaking to reporters after his return to Vienna this morning, Amano announced that Iran and the IAEA have reached agreement on how to move forward on inspection of Iran’s nuclear activities.

Of particular importance, Amano describes the agreement as part of a structured approach, which seems to fit Iran’s insistence that any agreement would lay out in advance the framework for how and where inspections are to take place. From Bloomberg:

“There was an important development on the structured approach document on which we have been working since January,” IAEA Director General Yukiya Amano said today in Vienna after returning from Tehran, where the deal was reached yesterday. “The decision was made to conclude and sign an agreement.”

The accord will be signed “quite soon,” Amano told journalists, without giving a date or details. The agreement comes as negotiators head to Baghdad for a second round of negotiations tomorrow over Iran’s nuclear program.

The New York Times has more key details, including the fact that inspection of the Parchin facility will be part of the agreement:

Mr. Amano’s visit to Tehran on Monday was his first to Iran since his appointment in 2009. Mr. Amano’s trip here, announced unexpectedly on Friday, was part of what diplomats in Vienna called an effort centered on persuading Iran to allow inspections of a site the agency suspects has been used for secret tests for triggering mechanisms that could be used in a nuclear weapon. Iranian officials have ridiculed those suspicions and contended that the site, called Parchin, was sufficiently inspected by the agency in 2005.

Diplomats in Vienna said an investigation of the Parchin site was “not the only game in town” in the negotiations on the so-called structured approach.”

Asked about the Parchin site specifically, Mr. Amano said: “I have raised this issue of access to Parchin and this issue will be addressed as a point of the implementation of the structured approach document.”

Significantly, the suggestions that Iran has attempted to clean the Parchin site have not made it into any of the articles I have seen announcing this agreement. Read more →

Despite Progress on Iran-IAEA Talks, US Envoy Emphasizes War Plans

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Both Bloomberg and the AP’s George Jahn reported yesterday that the second session of talks in Vienna between the IAEA and Iran produced progress and that additional talks are now scheduled for May 21 in Vienna. But don’t look for news of this progress in the New York Times, because it’s not there. And don’t look for statements from the US praising the progress (although China did praise it) and urging further progress at Monday’s talks in Vienna or the P5+1 talks later in the week in Baghdad. Instead, US Ambassador to Israel Dan Shapiro chose to emphasize in an interview on Army Radio in Israel that US plans for war with Iran are ready to be put into action.

First, the good news on the progress. From Bloomberg:

Iran and International Atomic Energy Agency inspectors extended a round of negotiations over the Persian Gulf nation’s suspected nuclear-weapon work after both sides said progress had been made.

IAEA inspectors will meet again with their Iranian counterparts on May 21 in Vienna. They ended today two days of talks in the Austrian capital.

“We discussed a number of options to take the agency verification process forward,” IAEA chief inspector Herman Nackaerts told reporters. “We had a good exchange of views.”

/snip/

“We had fruitful discussions in a very conducive environment,” Iran’s IAEA Ambassador Ali Asghar Soltanieh said. “We have had progress.”

More details on the progress are reported by Mehr News:

Iran and the International Atomic Energy Agency have agreed to develop a modality for further cooperation, the Mehr News Agency has learnt.

The responsibilities and commitments of each side will be determined by the modality and the measures necessary will be taken based on the agreement.

In his report on the progress of negotiations, George Jahn couldn’t resist a partial reprise of his report over the weekend in which he breathlessly released a cartoon purporting to depict an explosives chamber where nebulous “Western diplomats” have leaked to Jahn that work to develop an explosive neutron trigger for an atomic bomb has been carried out. In an interesting development, Jahn has put a new accusation into this scenario. On Tuesday, I pointed out that if the accused work has been carried out in the chamber, then the steel walls of the chamber will be radioactive due to neutron activation and that this radioactivity will be dispersed throughout the entire thickness of the steel. That means the chamber cannot have its radioactivity removed by the cleaning process claimed by David Albright:

The process could involve grinding down the surfaces inside the building, collecting the dust and then washing the area thoroughly.  This could be followed with new building materials and paint.  It could also involve removing any dirt around the building thought to contain contaminants.

Jahn now allows for the possibility that Iran could not leave a chamber that is radioactive due to neutron activation in the building for an IAEA inspection:

 Some fear that Iran may even dismantle the explosives containment chamber believed to be inside the suspect building, taking it out in small pieces, if given enough time.

Why has Jahn’s language evolved from “scrubbing” the chamber to removing it? Read more →