No one knows the end, Craig. Our economists can't get it right ever. We do know that things change on a dime these days. Who would have thought a black would be elected twice as president of the most influential and powerful nation on earth?

What's the last time you saw a spittoon? It's now a disgrace to spit on the streets. Iran is bombing Isis. Our NATO ally Turkey is bombing Kurds being taught by our troops to mark targets for our jets. It takes time to sort all this out. Who are enemies and friends?

Obama says at least 20 years. I think of Isis as one of those disease scourges that scared the world that pop up from time to time and are pushed back by technology and money. With more of both, the West won the Cold War. Where's Isis with traumatized peoples and oil at $20 a barrel?