Summary: <p>A high-level defection in Syria divides the Assad regime's inner circle, and the commander of U.N. peacekeeping forces there says violence has undermined their mission. In Pakistan, NATO supply routes to Afghanistan reopen after Secretary of State Hillary Clinton says the United States is sorry. The routes were closed after Pakistani soldiers were killed in a U.S. air strike last November. The United States and its allies impose sweeping new sanctions on Iran, and Tehran says the sanctions won't affect nuclear negotiations. Palestinians may exhume the body of Yasser Arafat to investigate claims that he was poisoned. Guest host Susan Page speaks with Yochi Dreazen of National Journal Magazine, Nadia Bilbassy of Middle East Broadcast Centre and Mark Mardell of BBC North America Editor.</p>
