I believe that the far-right and the far-left can be equally insane - but there's no question that in the first years of the Obama administration, the far-right has been far crazier. In part, this comes from parties being out of power - without the responsibility of governing to ground them, the activists and the ideologues take over.

A wingnut is someone on the far-right wing or far-left wing of the political spectrum - the professional partisans, the unhinged activists and the paranoid conspiracy theorists. They're the people who always try to divide rather than unite us.

It's important to remember that Bush Derangement Syndrome on the left - comparing him to Hitler, calling him a terrorist and a tyrant - preceded Obama Derangement Syndrome on the right.

But in his Farewell Address, George Washington made it clear that he perceived no greater threat to the American experiment than a partisan demagogue who 'agitates the community with ill-founded jealousies and false alarms, kindles the animosity of one part against the other'

Whats different now is that while political leaders used to give talking points to talk radio, now talk-radio hosts are giving talking points to political leaders. Its all part of the suffocating spin cycle were in. In media, politics and publishing, the conventional wisdom is to play to this base.

We cannot hope to change human nature. There will always be cranks and conspiracy theorists among us. But we can try to improve things - we don't have to accept the debasement of civil discourse or civic decline. We can take steps to ensure that the lunatic fringe remains on the fringe and stops bleeding into the base and then poisoning the mainstream

Godwin's law states that the longer any online debate goes on, the likelier it is that someone will play the Nazi card. It's the rhetorical equivalent of going nuclear and stupid at the same time.