Summary: <p>The U.S. commander in Afghanistan cautions troops to brace for violence. The warning comes after a series of anti-American statements by Afghan president Hamid Karzai. Britain and France signal they will arm Syrian rebels unless the European Union lifts a blanket arms embargo of the country. European leaders meeting at a summit in Brussels stick to a course of austerity. China's new president promises to root out corruption in the Communist party. President Barack Obama names a new ambassador to Libya. And Roman Catholics wait to see what course the new pontiff, Pope Francis, will take. A panel of journalists joins guest host Susan Page for analysis of the week's top international news stories.</p>
