Someone was waiting for this, right? Bill Ayers, known alternately as an “unrepentant domestic terrorist” and “pal” of Barack Obama, has written a Times op-ed seeking to belatedly address the charges. (Ayers says he saw “no viable path to a rational discussion” during the campaign.) Ayers admits his Weather Underground “crossed lines of legality, of propriety and perhaps even of common sense. … But it was not terrorism; we were not engaged in a campaign to kill and injure people indiscriminately, spreading fear and suffering for political ends.” As for Obama: “We didn’t pal around, and I had nothing to do with his positions. I knew him as well as thousands of others did, and like millions of others, I wish I knew him better.” And with that, another Election 2008 subplot comes to an end.