Hillary Clinton. Bill O'Reilly. Pigs fly. Hell freezes over.

How time flies! It was just a year ago that Hillary Clinton and Barack Obama refused to participate in a  televised debated sponsored by Fox News, resulting in its cancellation. But when you're locked in a death struggle over each and every one of a handful of remaining delegates, perspectives change. Obama on Sunday finally accepted a longstanding invitation to appear on Chris Wallace's Fox News Sunday. And now Clinton has agreed to journey to the very heart of darkness -- she's sitting down for an interview with the Great Satan himself, Bill O'Reilly. It will air in two parts on The O'Reilly Factor, Wednesday and Thursday at 8 p.m. Only problem is figuring out which is the lion and which is the Christian.