Britain's most famous scientist, Stephen Hawking, condemned the U.S. led invasion of Iraq as a "war crime" and said Tuesday it was based on lies. The physicist spoke at an anti-war demonstration in London's Trafalgar Square timed to coincide with the U.S. election. Protesters read out the names of thousands of Iraqis and coalition troops killed since the March 2003 invasion. "The war was based on two lies," said Hawking. "The first was we were in danger of weapons of mass destruction and the second was that Iraq was somehow to blame for Sept. 11. "It has been a tragedy...