A self-proclaimed al Qaida operative reiterated the group's responsibility for the series of explosions on Spanish city commuter trains on Thursday that claimed almost 200 victims. Investigators are still searching for suspects as government officials raised the death toll to 198, with 1,463 wounded. The Arabic newspaper Al-Quds al-Arabi said it had received a claim of responsibility issued in the name of Al Qaeda. The e-mail claim, signed by a group calling itself the Brigade of Abu Hafs al-Masri, said the brigade's ‘death squad' had penetrated ‘one of the pillars of the crusade alliance, Spain.'" In an e-mail titled...