Rep. Sheila Jackson Lee (D-Texas) is calling for congressional hearings to explore the measures being taken to protect U.S. athletes at the Winter Olympic Games in Sochi, Russia, next month.
The U.S. has offered its "full support" in security preparations, Jay Carney said.
Militant groups are threatening to attack Sochi during the Olympics.
Philippe Reines asserted there was no actionable intelligence on the specific attack.
Feinstein rushed to Clinton's defense over the Benghazi attack.
Sens. John McCain, Lindsey Graham and Kelly Ayotte (R-N.H.) called for accountability.
Dempsey said groups involved are not covered by the Authorization for Use of Military Force.
The revamped policy prohibits arms transfers “that may be destabilizing or dangerous."
Lieberman said he didn't see a coherent U.S. strategy on Syria, Iraq and Libya.
“I believe that groups loosely associated with al Qaeda were” involved, she told The Hill.