A recent book written by veteran CIA officers describes how deception can be identified by simple observational techniques. In Spy the Lie: Former CIA Officers Teach You How to Detect Deception, authors Philip Houston, Michael Floyd, and Susan Carnicero outline a number of verbal and visual behavioral clues that are demonstrated by people who lie in response to questioning. These proven techniques for recognizing deception can be easily applied to see that U.S. leaders have lied repeatedly about the attacks of 9/11.

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In a December 15, 2001 press conference, President George W. Bush was asked an unexpected question about 9/11. In a remarkably delayed response, - video here:

Bush exhibited both a verbal clue for deception, the failure to answer, and a visual clue called an anchor-point movement. The latter is when the anxiety raised by the question causes the person questioned to shift his body to relieve physical instability. As Bush replied, he shook his head, moved his hands, and seemed to be shuffling his feet uncomfortably.

Reporter: Do you agree or disagree with the RNC that {a question of your advanced knowledge of 9/11} borders on political hate speech?

Bush: Uh, yeah, there’s time for politics and, uh, you know… time for politics and, uh… I, uh, it’s an absurd insinuation.”

If the reporter had been a CIA interrogator, like any of the three authors of the book, this response would have raised an immediate red flag that the issue needed further examination.

http://www.washingtonsblog.com/2015/10/how-to-spy-the-911-lie.html