Will `Ace' McCain Flame Out Again? - Brief ArticleKelly Patricia O'Meara Over the years he's played many roles and worn many titles, including Navy aviator, prisoner of war, hero, congressman, U.S. senator, Washington insider, maverick outsider and, now, presidential candidate. But the one title of which few are aware is that of "service ace." John Sidney McCain III is known among many of his Vietnam flight buddies as "Ace" McCain. This title has not been bestowed upon McCain because he destroyed five enemy aircraft. On the contrary: It was five on our side -- in fact, five of his own....