Normal Topic NYC Subway Terror Threat Assessed by Polygraph (Read 2583 times)
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NYC Subway Terror Threat Assessed by Polygraph
Oct 7th, 2005 at 8:40pm
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ABC News today reports that Naval Intelligence and the CIA relied on polygraph results to assess the credibility of the source of recent information regarding a terrorist threat to the New York City subway system:

Quote:
The source of the threat information, arrested in Iraq, passed a polygraph test on the key points regarding the plots against the subway system, ABC News has learned — though there were indications of deception on other parts of the test.

Based on different interpretations of the polygraph, Navy and CIA intelligence discounted the information. But other agencies analyzing the data felt the inconsistencies only lent credence to the points where the source was telling the truth.

In addition, ABC News has learned, one of two Iraqi insurgents who were sources for the threat information said when arrested, reportedly in perfect English: "You f—-ing can't stop us now; it's too late."

A third man escaped arrest.

Sources say the informant told officials that the members of the attack team are made up of five nationalities — including Afghans, Syrians and Iraqis.


As Dr. Stephen E. Feinberg, chair of the National Academy of Sciences' Committee to Review the Scientific Evidence on the Polygraph diplomatically warned, "National security is too important to be left to such a blunt instrument." It is the height of incompetence for our intelligence community to be assessing the credibility of informants based on pseudoscientific polygraph tracings. Those responsible should be relieved of command.

For the rest of the story, see "Informant: N.Y. Subway Plotter Is in U.S"
« Last Edit: Oct 8th, 2005 at 1:07pm by George W. Maschke »  

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Re: NYC Subway Terror Threat Assessed by Polygraph
Reply #1 - Oct 8th, 2005 at 10:39am
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In an article in today's New York Times titled, "Terror Officials Work to Assess Subway Threat," William K. Rashbaum and Douglas Jehl mention the use of polygraphy to assess the veracity of the informant who provided information regarding the alleged subway plot:

Quote:
More details emerged yesterday about the information that led to the heightened security and the source who provided it. Officials said that the informant had at least on some occasions in the past provided accurate information to intelligence officials.

The informant, according to one official, had also passed a polygraph examination in Iraq on the information about an attack that he had given to Defense Intelligence Agency officials, although his statements on other issues during the examination were deemed inconclusive. A government official said the source had also provided the name of one person whom he identified as another plotter, who may have come to New York, but added that it was unclear if such a person even existed.
  

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Re: NYC Subway Terror Threat Assessed by Polygraph
Reply #2 - Oct 10th, 2005 at 8:21am
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ABC News reports on yet more reliance on polygraphs to assess the putative terrorist threat to the NYC subway system. Jeff Rossen reports in an article titled, "NYC Subway Threat - Not Credible?":

Quote:
(New York -WABC, October 9, 2005) - October 9th was the day - many believed to be the target date - for something to happen on the New York City subways. This - according to intelligence gathered from several men captured in Iraq.
Well now - ABCNews has learned - according to Washington analysts - the threats may not be credible.

Our Jeff Rossen reports.

A lot has changed in the past 24 hours. ABCnews has learned top intelligence officials in Washington, now say the subway threat is, most likely, not credible.

The new information comes from Iraq where 3 men arrested last week, all alleged suspects in the subway threat, have now been interrogated, and given lie detector tests. According to intelligence officials, the men claim they have no involvement in a plot to bomb the subway. U.S. officials checked the suspect's phone records and there are no matches to U.S. telephone numbers. ABCNews has learned, U.S. officials say the suspects show no sign of deception.

...


So was the polygraph wrong when the source of the threat information passed, or was it wrong when the three men he accused passed?
  

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Re: NYC Subway Terror Threat Assessed by Polygraph
Reply #3 - Oct 13th, 2005 at 10:21pm
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It would at least be cheaper to sacrifice a goat and read its entrails than to use the polygraph
  
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Re: NYC Subway Terror Threat Assessed by Polygraph
Reply #4 - Oct 13th, 2005 at 10:55pm
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This may have been a situation where a meaningful Guilty Knowledge Test (Concealed Information Test) might have been administered. For instance, the suspects who were arrested based on the informant's tip might have been quizzed about details of the plot as described by the informant. For example, "If you were involved in a conspiracy to attack the United States, you would know what city is the target. Is it:

Washington, DC?
Los Angeles?
New York?
Chicago?
Seattle?

These options would presented several times in different orders. The next question might go, "The target is New York. If you were involved in the planning of this attack, you would know what kind of facility is to be attacked. Is it:

The Statue of Liberty
The New York Stock Exchange
Kennedy Airport
The subway
The Lincoln and Holland tunnels

Again, these options are presented several times in different orders. Next might be, "The target is the subway. If you were involved in the planning of this attack, you would know what kind of explosive is to be used. Is it:

RDX?
PETN?
HMDT?
C4?
ANFO?

If the subject consistently reacts most strongly to the "right" item each time, then one could infer that the subject likely has "concealed information" regarding the plot. And one can mathematically calculate the probability of error. In the above example, with only 3 target items asked for, the odds of a person reacting most strongly to the target in all three questions would be 1/5^3 or 1 in 125. For more on this technique, see the following book chapter by David Lykken:

http://antipolygraph.org/articles/article-037.pdf

Of course, this technique, like the "control question test," is vulnerable to countermeasures. But with the GKT/CIT, at least in the case of a person who "hits" on the target questions (i.e., "fails"), one can make reasonable inferences based on the results, whereas CQT results are utterly unreliable.
  

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Re: NYC Subway Terror Threat Assessed by Polygraph
Reply #5 - Oct 17th, 2005 at 9:44pm
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Congressional Quarterly National Security editor Jeff Stein writes, among other things, on the use of polygraphs in the New York subway terror investigation in his SpyTalk column dated 17 October 2005:

Quote:

http://www.cq.com/public/20051017_homeland.html

New York Alert: Lost in Translation?
By Jeff Stein, National Security Editor, CQ Staff

Far away from the chatter about who knew what, when and how about the recent terror scare in New York City, some polygraph experts are shaking their heads at the so-called lie detector tests the Iraqi source at the heart of the matter “passed.”

The source, who was said to have provided reliable information to U.S. forces in the past, reportedly showed no deception in his answers to about half the questions posed to him about his claim that New York’s subway system was about to be hit by suicide bombers, according to news accounts.

“Insane,” responded Drew Richardson, one of the FBI’s top polygraph experts until he retired a few years ago, in an e-mail to SpyTalk. “I would say placing any significance on an examinee passing some portion or all portions on eight out of 15 CQT polygraph exams with all exams having covered the same subject(s) is, in a word, insane.”

CQT stands for “control question test,” a widely used technique, even with FBI job applicants, in which the polygraph examiner supposedly gets a baseline reading of the subject’s truthfulness by asking questions such as “Is your name [whatever it is]” and others where a subject is expected to lie.

Richardson famously boasted in the mid-1990s that it took him about 20 minutes to teach his 12-year-old son how to beat the test.

Details on what polygraph techniques U.S. intelligence is using in Iraq are highly classified.

“I have not seen any reports regarding the technique used,” George W. Maschke, an Arabic-speaking former Army intelligence interrogator, said in an e-mail from The Hague, where he works as an interpreter on the US/Iran Tribunal, charged with settling claims from the 1980 Tehran hostage crisis. But “it seems almost certain that a CQT was used, as presumably there weren’t any previously known or alleged facts about the plot on which he could have been tested.”

Other, somewhat more reliable tests are used, but Maschke said, “I think it’s more likely that a CQT was used. The CQT is easier to construct and administer, and polygraphers tend to believe in it.”

Maschke has had a lot of experience with polygraphs — the most recent one entirely negative. Despite holding a Top Secret/Sensitive Compartmented Information clearance while working on highly classified operations with the Army during the first Gulf War and with the FBI on the 1993 World Trade Center bombing investigation — for which he received commendations — he “failed” a polygraph test when he later applied for a job with the bureau. The FBI examiner told Maschke his answers showed he was covering up secret contacts with a foreign intelligence agency.

Incredulous, Maschke protested that he should be arrested if he was suspected of being a spy.

The FBI declined. He was never investigated, to his knowledge, much less arrested and prosecuted, but he also never got a job with the FBI, whose polygraph result short-circuited his advancement in the U.S. Army Reserves.

“I am not a spy. I have not betrayed the trust that my government placed in me,” Maschke said, denouncing “the junk science of polygraph screening.” Over the past decade, dozens of people who previously held Top Secret clearances have gone public with complaints about the FBI polygraphs. On the other hand, all the Soviet “moles” who infiltrated the FBI and the CIA passed their polygraph exams.

“The theory and methods of polygraphic lie detection are not rocket science,” says David Lykken, emeritus professor of behavioral genetics at the University of Minnesota and author of “A Tremor in the Blood: Uses and Abuses of the Lie Detector.” “Indeed, they are not science at all.”

Pass/Fail

U.S. intelligence officials sometimes agree. Last February an FBI informant “flunked” a lie detector test when reporting an imminent “dirty bomb” attack on the U.S., but a Code Orange alert was run up the flagpole anyway. Conversely, in 2003, an informant who “passed” a polygraph while saying Saddam Hussein possessed weapons of mass destruction emboldened Secretary of State Colin L. Powell to campaign for the invasion of Iraq.

According to some news accounts, operatives of Saddam’s regime were trained to “beat” the polygraph, enabling them to feed bogus information to U.S. intelligence — a deception made all the easier because of the scarcity of fluent Arabic speakers among U.S. interrogators.

Maschke, who has interrogated Iraqis himself, agrees the lack of language capabilities adds confusion to an already specious technique.

“Very few polygraphers speak Arabic. So apart from the normal ambiguities associated with polygraphy,” he said, “something could get lost in translation, too.”

Missing the Bigger Picture

A senior Defense Department special warfare official said focusing on the vicissitudes of the polygraph misses the bigger picture of how U.S. operatives took special care to test their sources’ information by other means. Special Forces personnel carried out raids that they believed confirmed the original leads and bolstered their faith in the polygraph results.

“What is credible is what was discovered both during an interrogation and a hit on a safe house pointing towards suicide bombings and particular targets in NYC,” the official, a counterterror operative for more than three decades, said.

Evaluating intelligence is an art, he said, not a science. It “begets the question of when do we hold back information and the question of what constitutes the appropriate response on the part of any government jurisdiction.”

The alert kerfuffle is getting a second look, first by the feds, who are looking into e-mails that Homeland Security officials allegedly sent to relatives in Manhattan warning them to stay away from the subway — even as department spokesman Russ Knocke was dismissing the intelligence the alert was based on. The House Homeland Security Committee’s top Democrat, Bennie Thompson of Mississippi, also said he is going to hold hearings on the affair.

It would be interesting to see how officials would react if they were told they would have to be wired up to a polygraph machine for their testimony.

...
  

George W. Maschke
I am generally available in the chat room from 3 AM to 3 PM Eastern time.
Tel/SMS: 1-202-810-2105 (Please use Signal Private Messenger or WhatsApp to text or call.)
E-mail/iMessage/FaceTime: antipolygraph.org@protonmail.com
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Personal Statement: "Too Hot of a Potato"
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NYC Subway Terror Threat Assessed by Polygraph

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