Britain's Prime Minister David Cameron listens as US Secretary of State Hillary Rodham Clinton speaks at theLondon Conference on Libya, oto at Lancaster House in London, Tuesday March 29, 2011. U.N. Secretary-General Ban Ki-Moon, U.S. Secretary of State Hillary Rodham Clinton, the Arab League, NATO chief Anders Fogh Rasmussen and up to 40 foreign ministers were attending the talks, seeking to ratchet up the pressure on Moammar Gadhafi to quit. Opening the talks, Britain's Prime Minister David Cameron said the conference would sketch out how the world could help Libya on a path to a post-Gadhafi rule.(AP Photo/Stefan Rousseau, pool)