Miami Herald: Libyan dictator Moammar Gadhafi, vowing to "die as a martyr," exhorted loyalists Tuesday to help him crush a rebellion even as top-level defections splintered the regime. New atrocity allegations emerged, including an effort to bury alive scores of protesters and soldiers who refused to shoot civilians. Libya's interior minister, top military officers and senior diplomats joined a growing chorus of former officials calling for Gadhafi's overthrow over what residents described as wholesale shootings of protesters and bystanders in the capital, Tripoli, by security forces and mercenaries backed by tanks and aircraft.