Source: MSNBC Libyan rebels claimed to be in control of most of the Libyan capital on Monday after their lightning advance on Tripoli heralded the fall of Moammar Gadhafi's nearly 42-year regime. Scattered battles erupted, and the mercurial leader's whereabouts remained unknown. The 69-year-old leader, urging civilians to take up arms against rebel "rats," said in an audio broadcast that he was in the city and would be "with you until the end." But there was little sign of popular [...]