Overview: 2010/05/07 Headlines: BP Oil Slick Reaches La. Shores; US Imposes 3-Week Freeze on New Offshore Drilling Permits; Labor, Civil Rights Groups Urge Arizona Boycott; Senate Defeats Amendment to Break Up Banks; Sen. Sanders Withdraws Fed Oversight Measure; Study: Americans "Bombarded" with Cancer Causes; Fmr. Interrogator: Khadr Was Told of Gang Rape After Capture; Pentagon Bans 4 Reporters from Gitmo Trials; Fmr. Guatemalan Soldier Involved in 1982 Massacre Arrested in Florida; Greek Lawmakers Approve New Austerity Measures; Burmese Opposition Party Dissolves; 2 Palestinian Civil Rights Activists Jailed; Biden Urges EU to Provide Passenger, Financial Data; Filmmaker Ordered to Hand Ecuador Footage to Chevron; Ohio Police Raid Home of Foreclosure Activist