Overview: 2011/08/15 Headlines: Obama to Tour Midwest, Meet Corporate CEOs; Bachmann Edges Out Paul for Iowa Straw Poll Victory; Pawlenty Drops Out of GOP Race; Perry Announces Bid; U.N.: Progress, Funding Shortfalls in Famine Response; Dozens Killed in Series of Iraq Bombings; Syria Deploys Navy in Protest Crackdown; U.S. Calls for International Boycott, Pressure on Assad; Libyan Rebels Challenge Gaddafi Forces; Mubarak Returns to Egyptian Court; Leading Egyptian Activist Charged with Incitement; Britain Taps Former U.S. Police Chief for Riot Response; Suu Kyi Makes First Political Trip Since Release; Norwegian Shooter Brought to Massacre Site; Unions to Boycott Democratic Convention in Charlotte