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Context of 'November 29, 2002: New Bin Laden Recording Could Be a Forgery'

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Following six attacks by different radical Islamic groups in Tunisia (see April 11, 2002), Pakistan, Yemen (see October 6, 2002), Kuwait, Bali (see October 12, 2002), and Moscow, a new audio message is released by a man said by some to be Osama bin Laden, although the identity of the speaker will be disputed (see November 29, 2002). The voice on the tape outlines a principle he says he and his allies are using: reciprocity. He comments: “If it pains you to see your victims and your allies’ victims in Tunisia, Karachi, Failaka, and Oman, then remember that our children are murdered daily in Palestine and Iraq… If it pains you to see your victims in Moscow, then remember ours in Chechnya. How long will fear, killing, destruction, displacement, orphaning, and widowing be our sole destiny, while security, stability, and happiness is yours? This is injustice. The time has come to settle accounts. Just as you kill, so you shall be killed; just as you bomb, so you shall be bombed. And there will be more to come.” [Laden, 2005, pp. 173-5]

Entity Tags: Osama bin Laden

Timeline Tags: Complete 911 Timeline

The authenticity of a new audio tape purportedly made by bin Laden, in which he praises recent attacks in Bali, Kuwait, Yemen and Moscow (see November 12, 2002), is disputed by Swiss voice analysts. US officials believe the voice is “almost certainly” bin Laden, but the Dalle Molle Institute for Perceptual Artificial Intelligence in Switzerland, one of the world’s leading voice-recognition institutes, is 95 percent certain the tape is a forgery. [BBC, 11/13/2002; BBC, 11/18/2002; BBC, 11/29/2002; Toronto Star, 12/16/2002] Two weeks after it was broadcast, a British newspaper publishes the complete text of a “letter to the American people,” purportedly written by bin Laden. [Observer, 11/25/2002] However, “diplomats [are] skeptical about the authenticity of the document.” [Guardian, 10/15/2002] The institute will not continue to analyse bin Laden’s speeches (see February 12, 2003).

Entity Tags: Dalle Molle Institute, Osama bin Laden

Timeline Tags: Complete 911 Timeline

Swiss voice analysts at the Dalle Molle Institute for Perceptual Artificial Intelligence decline to examine a new recording issued by a man thought to be Osama bin Laden (see February 11 or 12, 2003 and February 12, 2003). The institute previously analyzed a speech made by a man thought to be bin Laden and concluded that the speaker was not actually him (see November 29, 2002). The institute says that the previous analysis was done at the request of a French TV channel and was “mainly motivated by pure scientific curiosity.” It also says that the poor quality of that recording coupled with the limited number of voice examples meant that it was unlikely the recording could ever be properly authenticated. [Swissinfo (.org), 2/12/2003] However, US officials tell CNN that “this tape was of much better quality than the previous one presumed to be from bin Laden, which Al Jazeera broadcast in November.” [CNN, 2/12/2003] The institute does not analyze any later tapes thought to be released by bin Laden.

Entity Tags: Osama bin Laden, Dalle Molle Institute

Timeline Tags: Complete 911 Timeline

Popular Science magazine carries a rare interview with Tom Owen, a voice analyst who has worked on identifying Osama bin Laden in recordings allegedly released by the al-Qaeda leader. Owen worked for US media on the identification of bin Laden’s voice in a November 2002 recording (see November 12, 2002), assisted by a captain of the Saudi Interior Ministry’s forensics department he had apparently been teaching at the time. Owen, one of only eight forensic voice analysts certified by the American Board of Recorded Evidence, and other US experts identified the voice as bin Laden’s, although a Swiss facility disagreed (see November 29, 2002). The interview describes Owen’s lab and how he works, pivoting off the November recording. Owen criticizes the Swiss analysis, saying that the advanced biometrics software the Swiss used cannot work with the noise on the tape, as it is “designed to work with perfect samples.” Cleaning up the tape would not help, as this would remove the high and low frequencies a biometric system needs to make its identification.
Voice Identification Methodology - To identify voices, Owen uses a spectrograph, which produces spectrograms—“a kind of graphic speech rendering that has changed little since the 1940s”—that are then compared. His favorite tool for analyses is a “piece of vintage equipment—a reel-to-reel Voice Identification 700 spectrograph built in 1973,” which “differs little from the analog machines US Army intelligence officers built to identify and track German radio operators during World War II.” When analyzing a new recording thought to be from bin Laden, Owen compares the spectrograms it produces with spectrograms from a known bin Laden interview, such as one he granted to ABC in 1998 (see May 28, 1998). According to the magazine, there are “only a half-dozen words in common between the November tape and the ABC interview,” although the standards of the American Board of Recorded Evidence demand 20 identical words, preferably spoken in the same order.
Listening for 'Quirky Mannerisms' - However, Owen also listens for “the multitude of quirky mannerisms and pronunciation foibles peculiar to each voice,” because a trained ear can detect “the subtle whistle caused by a missing tooth, a person’s tendency to swallow in the middle of a sentence, even the way someone sets his or her jaw when speaking.” Owen plays the reporter what he calls a short-term memory tape, apparently a crucial tool in aural voice identifications. The spliced tape toggles between 2.5-second segments of bin Laden’s ABC interview and the November tape; Owen uses the tape to listen for peculiarities in a voice, especially when vowels are spoken. According to Owen, who says bin Laden’s voice is what the magazine calls “plenty peculiar,” the tape proves it is the “same guy” on the November tape and in the 1998 interview. However, the reporter comments: “To my untrained ear, it could be Darth Vader behind the static.… This is the sort of gray area that tends to make legal observers worry about the state of forensic science.”
Comments on NSA - According to the magazine, Owen’s technology is similar to that which the NSA probably uses to analyze voices, although Owen thinks the NSA has samples of bin Laden’s voice he does not. However, he does not think it has made biometric breakthroughs in analysis despite its advanced technology, which is “mostly devoted to listening.” [Popular Science, 2/24/2003]

Entity Tags: Al-Qaeda, Tom Owen, National Security Agency, Osama bin Laden

Timeline Tags: Complete 911 Timeline

The Dalle Molle Institute for Artificial Intelligence.The Dalle Molle Institute for Artificial Intelligence. [Source: Dalle Molle Institute for Artificial Intelligence]An analysis by Swiss researchers casts doubt on the authenticity of over a dozen of the more recent communications allegedly made by Osama bin Laden. According to a 2009 article in the American Spectator (see March 2009), the Dalle Molle Institute for Artificial Intelligence in Manno, Switzerland, which does computer voice recognition for bank security, compares the voices on 15 undisputedly authentic earlier recordings of bin Laden with the voices on 15 more recent recordings that have been attributed to the al-Qaeda leader. The researchers find that all of the more recent, alleged bin Laden recordings clearly differ from each other and from the genuine earlier recordings. This would therefore indicate that these more recent recordings have been faked. In contrast to the Dalle Molle Institute, the CIA found all of the recordings to be authentic. Angelo Codevilla, a professor of international relations at Boston University, will comment, “It is hard to imagine what methodology might support [the CIA’s] conclusion.” [American Spectator, 3/2009] The American Spectator will be the only publication to report this analysis. An analysis by the Dalle Molle Institute for Perceptual Artificial Intelligence in November 2002, of an audio recording allegedly made by bin Laden around that time, concluded that the recording was likely a fake (see November 29, 2002). [Guardian, 11/30/2002]

Entity Tags: Dalle Molle Institute, Osama bin Laden

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Angelo Codevilla, a professor of international relations at Boston University, publishes an article entitled “Osama bin Elvis” in the American Spectator arguing that Osama bin Laden is dead. “All the evidence suggests Elvis Presley is more alive today than Osama bin Laden,” writes Codevilla. He cites as evidence apparent differences in the facial features of people said to be bin Laden in video messages, problems with voice analysis—an independent Swiss facility found a recording the US attributed to bin Laden was not actually by him (see November 29, 2002), clear changes in bin Laden’s rhetoric after 9/11, problems with the “confession” video (see Mid-November 2001), and numerous reports of his death. According to Codevilla, if bin Laden’s death were popularly acknowledged, it would have serious policy ramificiations for the US. [American Spectator, 3/2009]

Entity Tags: Al-Qaeda, Osama bin Laden, Angelo Codevilla

Timeline Tags: Complete 911 Timeline

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