US was worried about a possible attack in Libya

"Small teams of special operations forces arrived at American embassies throughout North Africa in the months before militants launched the fiery attack that killed the U.S. ambassador in Libya." The Associated Press reports, "the soldiers' mission: Set up a network that could quickly strike a terrorist target or rescue a hostage. The White House signed off a year ago on the plan to build the new military counterterror task force in the region, and the advance teams have been there for six months."