From airlines champing at the bit to get back in the air over western Europe despite Iceland’s volcanic ash, to some dirty dealings at Goldman Sachs, questions of risk and risk-taking are dominating the news cycle this week. But what happens if we avoid risk all-together? Is it even possible?

We’re joined by John Dickerson, political correspondent for Slate, is writing a series on risk this week.

And John Marchel, gambling aficionado, author, speaker and teacher, tells us that roulette and Wall Street have a lot more in common than you might think.