In the Style section last summer we profiled a Los Angeles writer named Micah Ian Wright, who'd just published a shrill antiwar poster book called "You Back the Attack! We'll Bomb Who We Want!" In his book, he described himself as a veteran of combat, a former Army Ranger whose experiences during the 1989 invasion of Panama turned him into a peacenik. In interviews with The Post and other media, he played up that background. Wright, it turns out, is a liar. He never served in the military --