CAPE CANAVERAL, Fla. -- NASA is investigating how a bag of cocaine got into the hangar that houses space shuttle Discovery at the Kennedy Space Center in Florida. NASA spokesman Allard Beutel said Thursday that the bag contained a tiny amount of the illegal substance. It was found by a worker in a secure part of the hangar that is accessible by about 200 NASA employees and contractors. NASA is drug testing and interviewing workers, as well as using drug-sniffing dogs.