WASHINGTON (Reuters) - U.S. regulators are looking for ways to accelerate the use of drones and other aerial technologies to restore communications after disasters like 2005's Hurricane Katrina, which knocked out phone service for more than 3 million people. Federal Communications Commission Chairman Julius Genachowski said this technology would have been remarkably useful after Hurricane Katrina, which also crippled 38 emergency call centers in the New Orleans area. The FCC on Thursday voted 5-0 to explore how airborne technologies, already used by the U.S. ...