Pakistani police have arrested two suspects believed to have played key roles in a suicide bomb attack that killed a U.S. diplomat and three others outside the U.S. consulate in Karachi in March, an official said on Thursday. “We have arrested two people, but we cannot disclose their identities at the moment,” Salahuddin Haider, a spokesman for the provincial Sindh government, told Reuters. “But I can tell that both of them are key suspects in the U.S. consulate blast case.” Full Story