People keep saying Palin and friends' rhetoric shouldn't be blamed if this shooting turns out to be politically motivated because he was probably a loon. But it only takes one loon to look at something like this and (mis?)interpret it as a literal call to violence for something like this to happen. I don't see how anybody could have defended Palin at the time, and I certainly can't see how anybody could defend her now. Violent politcal imagery and rhetoric is irresponsible at best and dangerous at worse.