Overview: 2012/04/27 Headlines: House Passes Cyber Security Bill with Expanded Gov't Powers in Surprise Vote; U.S. and Japan Reach Okinawa Deal to Decrease Military Presence; 4 U.S. Soldiers Killed in Afghanistan; Secret Service Probes New Prostitution Claims; Sex Worker Accuses U.S. Staffers of Assault in Brazil; Clashes Break Out at Funeral for Bahraini Protester; Palestinians March in West Bank as Hunger Strike Grows; Biden Slams Romney on Foreign Policy; Paraplegic Chicago Man Sues Police for Alleged Abuse; Court Overturns Controversial Sentence of Black Mayor in Louisiana; Lawyer: Zimmerman Raises Over $200,000 for Defense; Study: Global Warming Accelerating Evaporation and Rainfall over Oceans; Student Protests Escalate in Chile, Quebec; New York City Unions, OWS Activists and Immigrant Rights Groups to Stage May Day Protests; Tens of Thousands in Norway Sing Peace Song Derided by Massacre Suspect;$