Yesterday former President Bill Clinton embarked on a surprise mission to North Korea to negotiate the release of two American journalists imprisoned there. Less than 24 hours later he is returning victorious, with the two women safely aboard his plane. How did he do it? Was the deal pre-cooked? Why did Robert Gibbs, the White House spokesman, specifically state that Clinton did not carry a private message to Kim il Jong from President Obama? To help us unravel the mystery, The Takeaway talks to New York Times reporter David Sanger.