Is Nato an Insurance Policy?

Admiral James Stavridis faced formidable threats from Russia while commanding NATO's forces in Europe. The former Supreme Allied Commander shares his insight into the critical decision facing the alliance's leaders as they prepare to meet in Madrid. He looks at how Putin is likely to respond to their latest moves and co-host Sir Richard Dearlove, who led the British intelligence service MI6 makes a major revelation about how Moscow has recently personally targeted him and other former national security leaders.