Pakistani security personnel inspect the

Pakistani security personnel inspect the documents of vehicles and residents of Swat Valley as they pass through the town of Dargai on July 31, 2009. Pakistan has been returning families to northwestern districts Swat and Buner, where troops unleashed a massive summer offensive against the Taliban. Around 600,000 out of an estimated 2.2 million people displaced by fighting between government troops and Taliban militia across the northwest have returned home, a UN spokeswoman told a news conference. AFP PHOTO/A MAJEED (Photo credit should read A Majeed/AFP via Getty Images)