Vice President Joseph Biden

FILE - In this file photo from Feb. 19, 2009, Central Intelligence Agency Director Leon E. Panetta stands in front of the Memorial Wall as he addresses CIA employees after being sworn in by Vice President Joe Biden, at CIA Headquarters in Langley, Va. The stars on the wall represent CIA employees who have died in the line of duty. The Wednesday, Dec. 30, 2009 attack that killed seven CIA employees at a remote outpost in Afghanistan is likely to raise questions about whether the agency could do more to protect its operatives on dangerous assignments.