[PLMerite]

It was all classiified. When he resigned he lost his clearance. He was “read off” all the clearances he had and can no longer divulge any classified information he knows without permission.

What power a Congressional Committee has to impact that I do not know.

If I was him unless I had something signed by the DOJ, DOD, DCI, CIA, etc., I’d keep my yap shut.

[AAABEST]

It was all classiified. When he resigned he lost his clearance. He was “read off” all the clearances he had and can no longer divulge any classified information he knows without permission.

Keyword classified.

There may be aspects of our presence there that may be classified, but as far as I know, nobody got read-in or out of the Benghazi terrorist attack or the lies that followed.

I know for SURE that the "spontaneous reaction to a video" aspect wasn't classified, because it was complete fabrication.

[shhrubbery!]

It was all classiified. When he resigned he lost his clearance. He was “read off” all the clearances he had and can no longer divulge any classified information he knows without permission.
What power a Congressional Committee has to impact that I do not know.

Can't a Congressional Committee grant him immunity?

I seem to remember that once immunity has been granted, a witness has no choice but to testify.

Iirc a witness cannot even take the 5th Amendment, once granted immunity. Could be wrong.