Play of the Day: Warren Harding Isn't The Only President To Write Steamy Love Letters

The recent release of President Warren Harding's love letters to his mistress Carrie Phillips has created quite the stir. But Harding isn't the first president to have written love letters from the Oval Office.

Plus: NASA is giving smartphones to its robots, climate change deniers are being denied time on BBC's airwaves, and recreational marijuana is now legal in Washington state.