Libyan senior Rebel commander Khalifa Hifter leaves a press conference in March 2011 in the court house in the center of Benghazi, in eastern Libya. Gen. Supporters are flocking to his self-professed campaign to crush Islamists and bring stability, but there are fears his ultimate goal is to become a new strongman. The U.S. is reacting to the internal conflict by sending hundreds of marines to the region, in case American civilians and diplomatic staff need to be evacuated. AP