A bomb tore through a crowded New Year’s concert in Indonesia’s Aceh province, killing 10 people — including three children — and challenging government claims that security in the restive region is improving. Wednesday’s blast, which also wounded 45 people, was the bloodiest bombing in Aceh since the government on May 19 abandoned a six-month truce and launched a military offensive against the rebels. Authorities accused separatist guerrillas of the bombing — a claim denied by the insurgents, who have been fighting since 1976 for independence for their oil-and gas-rich province on the northern tip of Sumatra island. The bombing came as Jakarta undertakes a massive military offensive to crush the insurgency, one of several in remote regions of Indonesia that threaten to break up the sprawling archipelago in the Indian Ocean. Full Story