LOS ANGELES (Reuters) - Whitney Houston's ex-husband Bobby Brown struck back at claims he was responsible for getting the pop star hooked on drugs or that he somehow played a role in her cocaine-fueled death in February. "I'm not the one that got Whitney on drugs, at all," Brown said in an interview to be aired this week on the "Today" show on U.S. television network NBC. "I'm not the reason she's gone," he added. Houston, 48, was found dead in a Beverly Hills hotel bathtub on February11 from what authorities called accidental drowning brought on by cocaine use and heart disease. ...