Putin 'testing the NATO alliance' by flying drones over Poland and Romania

For the second time in less than a week, Russian drones were spotted within NATO airspace. This time in Romania on Saturday. The European Union called it a reckless escalation by the Kremlin, raising tensions and threatening security in Eastern Europe weeks after Vladimir Putin, of course, had his high-profile summit in Alaska with our president.And he was also in Beijing. Joining us now, NBC's Danielle Hamjin and Michael McFall, former US ambassador to Russia and MSNBC international affairs analyst. And Da ...