U.S. adds more Predator drones to search for drugs in the Caribbean

After quietly testing Predator drones over the Bahamas for more than 18 months, the Department of Homeland Security plans to expand the unmanned surveillance flights into the Caribbean and the Gulf of Mexico to fight drug smuggling, according to U.S. officials. The move would dramatically increase U.S. drone flights in the Western Hemisphere, more than doubling the number of square miles …