By Karen DeYoung and Michael Birnbaum, Updated: Wednesday, September 12, 8:31 AM
U.S. Ambassador to Libya John Christopher Stevens and three other Americans were killed Tuesday in an assault on the American consulate in the eastern city of Benghazi, the White House said.
In a statement issued by the White House early Wednesday morning, President Obama said he had directed an increase in security at U.S. diplomatic posts around the world. CNN reported that the Defense Department has dispatched two Marine Corps anti-terrorism security teams to Libya to reinforce security there.