2/12: Tester, McCaul, Sununu

This week on "Face the Nation with Margaret Brennan," just one day after U.S. fighter jets shot down a high-altitude object over Alaska, an unidentified item was taken down over the Yukon territory of Canada. We'll talk with two key lawmakers as frustration is mounting on Capitol Hill about what's going on here — and what more we can do to head off these intrusions.