The leader of an influential Pakistan political party called Tuesday for better state-provided security after a suicide bomber from the Islamic State (IS) group killed 54 people - almost half of them children - at an election gathering. Around 400 members of the Jamiat Ulema-e-Islam-F (JUI-F) party - a key government coalition partner - were meeting Sunday when a bomber detonated a vest packed with explosives and ball bearings. JUI-F's leader,