What was expected to be a boring congressional hearing erupted into high drama yesterday as an unnerved Treasury Secretary Tim Geithner sparred with frustrated lawmakers calling for his head over his handling of the economy. Clearly rattled by a fusillade of attacks from Republican members of the Joint Economic Committee, the usually reserved Geithner lashed out, laying blame for the current economic mess at the feet of the GOP and rejecting suggestions that he resign. Republicans "gave this president an economy falling off the cliff," Geithner fired back at Rep. Kevin Brady (R-Texas), one of the Treasury secretary's harshest critics...