Pakistani people from tribal areas shout slogans as they march during a rally in Peshawar to protest U.S. drone attack, on Feb. 7, 2013. At least five people were killed and many others injured on Wednesday afternoon as U.S. drone attacked in Pakistan's north-western tribal region of North Waziristan. (Xinhua/Ahmad Sidique)

Pakistani people from tribal areas march during a rally in Peshawar to protest U.S. drone attack, on Feb. 7, 2013. At least five people were killed and many others injured on Wednesday afternoon as U.S. drone attacked in Pakistan's north-western tribal region of North Waziristan. (Xinhua/Ahmad Sidique)

 Pakistani people from tribal areas shout slogans as they march during a rally in Peshawar to protest U.S. drone attack, on Feb. 7, 2013. At least five people were killed and many others injured on Wednesday afternoon as U.S. drone attacked in Pakistan's north-western tribal region of North Waziristan. (Xinhua/Ahmad Sidique)