Awwal 18, 1432 H / April 22, 2011, SPA -- The United States is starting to use armed Predator drone aircraft over Libya to target the forces of Moammar Qaddafi after President Barack Obama approved their use, Defense Secretary Robert Gates said Thursday. The unmanned aircraft, already in use to target militants along Pakistan's border with Afghanistan, will allow for more precise attacks against Qaddafi's forces, Gates told Pentagon reporters.