Absolutely right, and that's why I personally feel the MoveOn.org ad was entirely non-controversial and on target, even if it ultimately proved to be an easy distraction for the pro-war crowd to latch on to. It's fairly obvious that his role in all of this is not primarily of a military nature, it is more that of a political operative. Given that, going after him is entirely fair.
(Not that you're ever above criticism, even when in uniform.)

"The basis of optimism is sheer terror" - Oscar Wilde