David Swanson, on Counterpunch, criticizes Steven Pinker's optimistic view of the Iraq war, claiming it killed 5% of the population, a far greater percentage than the number of Americans killed in any war.

http://www.counterpunch.org/2013/03/18/iraq-war-among-worlds-worst-events/

It's a shame he doesn't mention Pinker by name or link to his writing.

Here's my review of Pinker:

http://www.pacificaforum.org/leviathan-2-0---a-review-of-steven-pinker-s-the-better-angels-of-our-nature