It's been 30 years since the last bombs fell during the Vietnam War, and longtime peace activist Peter Yarrow says it's about time that America apologizes. The singer-songwriter from the 1960s folk group Peter, Paul and Mary has grown gray, but his passion to fight for those affected by the war remains fervent. During his first trip to Vietnam this week, he told The Associated Press that the war wounds of the United States won't heal until the nation makes amends — a process he believes should involve helping Vietnamese suffering from the ill health effects of Agent Orange, a...