"If you knock on Wakil's door, he's going to kill you." That's what Tareq Azim's guide told him, as they stood at the foot of the local Taliban warlord's home. Most people would let fear get the better of them. However, Tareq had already conquered fear. He walked up to the door by himself, and gave three loud knocks. Azim's family descended from Afghan royalty, but were forced to flee in 1979, after the Soviet Union invasion. They eventually settled...