CASTAIC (CBSLA.com) — A federal law enforcement-issued gun and badge are just a couple of the items that have been recently found underneath the receding waters of drought-dry Castaic Lake. A Castaic man fishing on the dam at Castaic Lake found a backpack that had been exposed as the water line has gone down 151 feet, Los Angeles County Sheriff’s Department officials said. The bag contained a gun and a badge issued to an agent from the Bureau of Alcohol, Tobacco and Firearms. The ATF agent, who was not identified, said that he and a friend from the Los Angeles...