Ehud Barak

Iran's continued drive to develop nuclear capabilities, including troubling enrichment activities and past work on weaponization documented by the IAEA, and its continued support to groups like Hezbollah, Hamas and other terrorist organizations make clear that the regime in Tehran is a very grave threat to all of us.

There are clearly many good politicians who are guided by religious belief, so the mix can work. But there's a line to be drawn. It would be hugely dangerous for a country's laws to be set by the scriptures, and particularly those of the expansionist religions.

I'm a big Penn & Teller fan. But I myself was never very good; I was a teenage magician who performed at kids' parties. I can still perform a vanish, credibly, and I still, in special circumstances, will make a balloon animal.