KARACHI : Police in this southern port city have arrested a suspect in last week's bombing of a Christian Bible society and seized a huge cache of explosives, authorities said. Shamim Ahmed, a Pakistani man allegedly affiliated with the Islamic militant group Lashkar-e-Jhangvi, was arrested Saturday in Karachi . Information he provided led police to the discovery late yesterday of a bomb-making factory in an abandoned house elsewhere in the city. A senior police officer, who spoke on condition of anonymity, said Ahmed was believed to be linked to the Jan. 15 attack in which a grenade and powerful car...