In this Friday, Dec. 10, 2010 file photo, Pakistani tribal villagers hold a rally to condemn U. S. drone attacks on their villages in border areas along the Afghanistan border, in Islam

 

              In this Friday, Dec. 10, 2010 file photo, Pakistani tribal villagers hold a rally to condemn U. S. drone attacks on their villages in border areas along the Afghanistan border, in Islam
In this Friday, Dec. 10, 2010 file photo, Pakistani tribal villagers hold a rally to condemn U. S. drone attacks on their villages in border areas along the Afghanistan border, in Islamabad, Pakistan. The head of a U.N. team investigating casualties from U.S. drone strikes in Pakistan declared on Friday, after a secret research trip to the country, that the attacks violate Pakistan's sovereignty. (AP Photo/B.K. Bangash)