Retired U.S. Ambassador Thomas Pickering, who led the State Department’s internal audit of the Benghazi attack, defended their efforts on Sunday, saying they had completed a thorough review and saw no reason to reopen the investigation.

“I don’t see yet any reason why what we did at the Accountability Review Board should be reopened,” said Pickering on CBS’s “Face the Nation.”

Issa said the White House "effectively lied" to the public about the nature of the attack

The House Intelligence chairman said committees had been contacted by additional whistleblowers.

Top officials discussed the terms of an agreement outlining the U.S.'s role in Afghanistan as it prepares to remove troops.

Spokesman Jay Carney accused Republicans of trying to "politicize" last September's terror attack in Libya. 

The secretary of State in a Google Hangout Friday bemoaned the ongoing controversy and investigation into the September attacks.

ABC News reviewed 12 versions of talking points on Benghazi indicating extensive editing after they were written by the CIA. 

The White House released a national strategy Friday for balancing energy- and minerals-development and conservation in the Arctic.

The document contains three policy aims — advancing national security interests, responsibly managing the Arctic ecosystem and bolstering international relationships. The White House will develop an implementation plan for the interagency effort in the coming months, a senior administration official said during a media call.

The Arctic issue is politically sensitive for President Obama, who is juggling demands from green groups to address climate change while also encountering pressure from Republicans and the oil-and-gas industry to ramp up drilling.

Moscow is walking a fine line on possible sales of heavy weaponry to Syrian president Bashar Assad's regime, vowing to block any new sales to the embattled leader, but promising to deliver on previous sales to the regime.