Quote:

The biggest problem, of course, is the continuing impression that the polygraph is an effective tool "of last resort",

I got the impression from Mr. McSlarrow's testimony that the DOE is now seeing the polygraph more as a tool "of first resort", if you will. Information gleened from polygraph exams would have to be further investigated and corroborated prior to any action being taken.
While an improvement, along with the 75% reduction in the number of people subject to polygraphs, it still isn't enough. As George said, snake oil is still snake oil.
A battle is won, but the war goes on.