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Would you provide our enemy with instructions on where to attack the vehicle or how to take advantage of the weakness?  That's exactly what you are doing now and that to me is an act certainly not taken by a patriot but an enemy.

Unless you've been under a rock since 2001, you may recall that training manuals recovered in Afghanistan in 2002 had an entire chapter devoted to lie detection, how it's supposed to work and how to defeat it.  Whether or not any of that is accurate isn't the point.  The point is that community of people with whom we are at "war" has drawn its conclusions about lie detection and distributed it widely.  The only thing that's new and different about the PCASS is that it comes in a cute, handheld package.  But its makers still purport that it's a lie detector, and it will be just as ineffective as a full-sized model against anyone who believes it's just a prop.

George's opinion is indeed his opinion, and yours is of no more or less value than his or mine.  Without hard, scientific data to prove one way or the other, the entire field if credibility assessment is nothing but opinion, even if it has been put in the form of a computer program and sold to the government at a ridiculous price.  (And that's my opinion.)

--Auntie