Overview: 2010/03/03 Headlines: 30 Killed in Iraq Suicide Bombings; Witness: State Dept. Officials Sought Exoneration of Blackwater Guards; US Awards KBR $2.8B Contract in Iraq; Israel Delays East Jerusalem Home Demolitions; UN Humanitarian Chief: Gaza an "Open-Air Prison"; Senate Extends Jobless Benefit After Bunning Drops Filibuster; Nissan to Recall 540,000 Vehicles; Study: Insurance Premium Hikes Far Exceed Costs, Inflation; Report: Right-Wing Extremist Groups Grew 244% in 2009; LA to Warn 5,200 Teachers of Layoffs; Admin to Adopt Second Measure of US Poverty Rate; Supreme Court Refuses to Block DC Gay Marriage Law