Exposing the Shadow Candidate Bring. It. On. Those were the words of John Forbes Kerry, the junior Democrat Senator from Massachusetts, challenging President Bush to a debate on Vietnam and military service. Well, in the words of a certain horrible cheerleader movie, it’s already been broughten. Ever since Kerry centered his campaign on his abbreviated four-month tour of Vietnam, outcry has come up not from the President’s campaign, but from groups of veterans. The most famous of these groups, Swift Boat Veterans for Truth, has laid into Kerry with both a best-selling book (“Unfit for Command”) and a televised commercial...