Given my recent attempt to explain logic to the world, I found the following comments thread discussion to be of interest:

Hector: To resolve the problem of evil by resort into _atheism_ is not just unwarranted but logically absurd. I’ve always felt that the existence of evils like Hitler and that Liberian cannibal warlord actually provide a remarkable evidence of the existence of God. Hitler is impossible to explain without positing a devil, and a devil makes no sense without a God to oppose it, therefore God must necessarily exist.

[Shorter multiple posters: WTF?]

Hector: I’m not sure what you found unconvincing. I just proved on the basis of pure logic that a devil, and hell, must necessarily exist.

This was on a post by Ross Douthat, which itself was actually pretty interesting.