Summary: <p>The U.S. and Afghanistan reached a tentative security agreement. But in a surprise move, Afghan President Karzai declared he would not sign it until the spring. Talks on Iran's nuclear program resumed in Geneva as top Iranian cleric Ayatollah Khamenei warned his negotiators not to give ground. Twin suicide bombings outside the Iranian embassy in Beirut underscore concerns that Lebanon is being drawn into Syria's civil war. China announced it will ease its one-child policy. And the death toll from the typhoon that hit the Philippines surpassed 5,000. A panel of journalists joins Diane for analysis of the week's top international news stories.</p>
