Attempts to send convoys of food and medicine to thousands of people under siege in a rebel-held area of Homs failed Monday, lowering hopes about the regime’s commitment to confidence-building measures coming out of peace talks in Geneva. Syrian government and United Nations officials met for talks in Homs, Syria’s third-largest city, but they couldn’t agree how to implement a U.N. plan proposed to the regime more than a week ago. The regime insisted on Sunday in Geneva and on Monday in Homs that it would only discuss the evacuation of civilians. The opposition is demanding that aid be delivered before any evacuation, fearing that once some civilians leave, the government will launch a military offensive against rebels who remain. The government’s siege of the old quarter of Homs for the past 20 months has trapped an estimated 3,000 civilians and up to 4,000 rebels. Both the U.N. […]