Having served as the highest-ranking Muslim in the U.S. administrations under four presidents, Afghanistan-born Zalmay Khalilzad has resumed his daunting task of reviving talks, with Taliban insurgents. Since the collapse of the post-Soviet regime in Kabul, to the rise and fall of Taliban, Khalilzad's diplomatic endeavors in Afghanistan at times were seen with deep suspicion but also with profound optimism. Born to a prominent Afghan family in the northern city ...