President Biden's decision to withdraw the last U.S. troops from Afghanistan in September is raising questions about the future of a country that has seen little but conflict and humanitarian crises since 1979. The U.S. war could end the way it started: with the Taliban in power. Former U.S. diplomat Johnny Walsh took part in negotiations with the Talibs at the peace table, and was a senior advisor on the Afghan peace process for 10 years during the Obama and Trump administrations. He explains what we might expect if the Taliban seizes power in Kabul again.