On 6 May 2013, Greta van Susteren told U.S. Senator Lindsey Graham (R-SC) that Fox News has information that CIA Director John Brennan has threatened Agency employees who might provide information to Congress regarding the 11 September 2012 raid on the U.S. Consulate in Benghazi, Libya with polygraphs. Sen. Graham said he had heard the same thing:

Van Susteren: We have information that people from the CIA want to come out and testify, but they’ve been told by the CIA director, Brennan, specifically they will be polygraphed if they are tied to this. Do you have any information to corroborate that? Graham: I’ve heard that same story. I know there’s some CIA agents reaching out. They feel frustrated….

The exchange occurs about two minutes into the segment, which may be viewed on-line here. It should be noted that polygraph “testing” has no scientific basis, and polygraph operators can manipulate outcomes to satisfy the wishes of management.

Also with regard to Benghazi and polygraphs, on 3 April 2013, former CIA and State Department employee Larry C. Johnson reported on his No Quarter blog in a post titled The CIA Playing Hardball on Benghazi:

When I first heard of this from a friend who had first hand knowledge, I was still skeptical. What did I hear? The CIA is conducting weekly polygraphs of officers who work in paramilitary activities (I knew it as Special Activities Division back in my day) and were involved in supporting the operations at Benghazi, Libya last September. So, I asked another friend to run his traps. He reported the same plus that the Intelligence Officers are being pressured to sign an additional Non-Disclosure form.

AntiPolygraph.org welcomes any information readers may be able to provide regarding the use or threat of polygraphs to deter whistleblowing.