Hey Phil!

I'm not sure what your general source reference "more and more people" refers to, but I can guarantee this:
--the only persons knowledgeable of CIA polygraph procedures are current employees or applicants.
--both groups have signed secrecy agreements and would not likely make even casual references to even the most trivial details surrounding _any_ aspect of their employment or selection.

In other words... abandon your speculation.

Of all the federal agencies I am familiar with, I can state with a degree of certainty that the CIA has relied on/relies on the polygraph more than any other federal organization and is not likely to discontinue its use.

According to a recent post in the Personal Statements segment of this website, an alleged CIA applicant mentioned a CIA polygraph was part of a pre-employment process.

8)