Pakistan

Associated Press
Volunteers carry a wounded bus passenger following a blast in Karachi, Pakistan, Saturday, Dec. 29, 2012. The blast that ripped through the bus set the vehicle on fire and reduced it to little more than a charred skeleton, killing scores of people and leaving many injured. Authorities were trying to determine whether the explosion was caused by a bomb or a gas cylinder, said a police spokesman. (AP Photo/Fareed Khan)

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A Taliban suicide bomber detonated a vehicle packed with explosives Monday outside the home of a senior police officer tasked with cracking down on militants in Pakistan's largest city.

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