For U.S. diplomats, 2016 began as a year spent putting the finishing touches on President Obama’s global policies. And when they learned that Hillary Clinton would not be moving into the White House, those same State Department workers began a race against time to lock in their achievements. Their efforts are captured in a documentary called “The Final Year,” and we talk with director Greg Barker about traveling the world with Samantha Power, John Kerry and other key figures.