Los Angeles — EVEN today, Americans argue over the Vietnam War: what was done, what mistakes were made, and what were the lasting effects on American power. http://www.nytimes.com/2016/06/20/opinion/bob-kerrey-and-the-american-tragedy-of-vietnam.html?comments&_r=1#permid=18896605 By VIET THANH NGUYEN JUNE 20, 2016 This sad history returns because of Bob Kerrey’s appointment as chairman of the American-sponsored Fulbright University Vietnam, the country’s first private…