A House committee chairman wants to know whether a retired diplomat who helped lead an independent review of the attack against the U.S. in Benghazi, Libya, will agree to be interviewed by committee investigators.
The former ambassador, Thomas Pickering, already has told the House Oversight and Government Reform Committee that he's willing to testify in public.
GOP Rep. Darrell Issa (EYE'-suh) of California now wants Pickering also to answer questions from committee staff before the hearing.
Pickering and a retired admiral, Mike Mullen, led the Accountability Review Board report of the Sept. 11 attack that killed the U.S. ambassador to Libya, Chris Stevens, and three other Americans.
Republicans have criticized the report and said the leaders should have conducted a full-scale interview with former Secretary of State Hillary Rodham Clinton.
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