News In 2013, US Expects Shift To Training Role In Afghanistan by David Taintor 02.01.12 | 12:09 pm U.S. and Afghan soldiers conduct a joint patrol in Kandahar Province, Afghanistan in January 2012. 1 Powered by Mochila Send Tips David Taintor is a New York-based senior editor who oversees breaking news coverage. He previously worked at NBC News.