The Agenda with Steve Paikin S15E12 - Is America Dangerously Divided?

It's a contentious time in the U.S. But have the seeds been sown for a potential civil war? And what would that mean for Canada? Then, author and Harvard professor Michael Sandel tries to make sense of what's gone wrong with American civic life, the subject of his new book, "The Tyranny of Merit: What's Become of the Common Good."