Modern visions of the Angel of Death.
CBS News explains the two targets were hit while on the run. "Once they started moving, the al Qaeda operatives became easier to track, and the U.S. military started preparing for an air strike, using unmanned aerial drones to keep them under surveillance and moving the aircraft carrier Eisenhower out of the Persian Gulf toward Somalia. But when the order was given, the mission was assigned to the AC-130 gunship operated by the U.S. Special Operations command."
While not explicitly stated, the report indicates the likelihood is high that there are indeed U.S. Special Forces on the ground. An American intelligence source informs us U.S. Special Forces and CIA paramilitary teams are directly embedded with Ethiopian forces in Somalia.