wrote on Sep 12^th, 2003 at 10:28pm:

Does anyone else find it curious that details of apparently all of polygraph screening's purported counterespionage successes to which Mr. McSlarrow referred remain classified (bearing in mind that the U.S. government has been doing this for 50+ years), and apparently none led to criminal prosecutions?

To me, that last point is especially damning.  Makes you wonder how much boasting is going on, as in "we are pretty sure we've stopped a bunch of spies, but we could never actually prove any of them were spies.  Still, we're going to claim these as polygraph successes anyway".

Skeptic