Bangladeshi policemen detain an opposition activist, center, in front of the main opposition Bangladesh Nationalist party office during a nationwide half-day strike in Dhaka, Bangladesh, on Thursday, Dec. 13, 2012. Homemade bombs exploded in Bangladesh's capital and police fired tear gas at demonstrators as opposition parties enforced a general strike on Thursday, demanding that the government restore an election-time caretaker administration. (AP Photo/A.M. Ahad)