Bombs kill 15 in Pakistan; US drone reported down

Three separate bombings killed 15 people in northwestern Pakistan, while authorities investigated reports that a pilotless US drone crashed elsewhere in the militant-plagued region bordering Afghanistan. The bombings Saturday, coming days after gunmen attacked Sri Lanka's visiting cricket team, were a fresh reminder of the militant threat in Pakistan, where Western leaders worry that a growing political feud could distract the government from tackling the extremists head on.