Guest column, part of a series on the Vietnam War. This one is about black troops. On the one hand the front lines were "the one place where everyone was equal," on the other hand there were cross burnings in Vietnam (?!?). Opinion | Black and White in Vietnam Reminds me of what my senior drill sergeant said to a young dumb Arkansas cracker: Sergeant: "You don't like n___ers, do you boy?" Recruit: "Sergeant, no Sergeant!" Sergeant: "Well, son, you are in the wrong business"