The United States will soon enter its 20th year of fighting in Afghanistan. Nearly 3,600 American troops have died there, as well as hundreds of thousands of Afghans. But Afghanistan was at war decades before the U.S. invaded after 9/11. Can newly begun talks between the country's government and Taliban insurgents, brokered by the U.S., finally usher in an era of peace? Nick Schifrin reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders