Syrian forces reported to have opened fire on biggest protests yet in that country. Six states are suing power companies in an attempt to force them to lessen their emissions. The Supreme Court hears oral arguments in that case today. Obama is holding a virtual town hall from Facebook HQ tomorrow. How is social media going to play into the upcoming election? Literary critic David Kipen is in to talk about the Pulitzer Prize winners. And Ann Powers is back for new music Tuesday, with some powerful indie folk rock that you'll just have to sing along to.