Video: Anonymous flyer attacks McCain's years in the Hanoi Hilton

The South Carolina primary has gone bare knuckle, with push-polling and a swipe at, of all things, John McCain’s military service record. That’s the one and only aspect of McCain’s record that’s unassailable. As a military man, he was absolutely heroic. As a politician, though, he leaves much to be desired.

The question is, who would be dumb enough to attack McCain on the former and not the latter? It’s hard to believe that any actual campaign had anything to do with this.

Update: Here’s the flyer’s source.