WASHINGTON (Reuters) - A U.S. Senate panel has begun an inquiry to determine what a top official in Saddam Hussein's government told the CIA about Iraqi weapons of mass destruction in late 2002 as the Bush administration made its case for war. ADVERTISEMENT The Senate Select Committee on Intelligence said in a September 8 report that it launched the investigation after the CIA's former chief of European clandestine operations appeared on the CBS' "60 Minutes" news magazine in April. The official, Tyler Drumheller, told CBS that the Iraqi government source had said Iraq had no active unconventional weapons program. Drumheller's...