Mark Zuckerberg's New Prize

An exclusive BBC interview with the biggest name in global technology - Mark Zuckerberg, founder of Facebook. The 28 year old billionaire is joining forces with other Silicon Valley moguls to bankroll a new prize, rewarding research into curing diseases and extending human life that, at $3 million, is three times more valuable than its Nobel Prize equivalent. He talks about the prize, about collaborating with Google, and about what keeps him awake at night.

And we also hear from Gary Gensler, the head of the Commodities Futures Trading Commission, and one of America's foremost bank regulators. Mr Gensler talks about rate-rigging, and why restoring trust in the system is critical.