Author explains the science of B.S. and why we're all susceptible

Throughout this political season, we’ve been subjected to politicians muddying the facts to get what they want — often without having to answer for it. Twenty years ago, philosopher Harry G. Frankfurt published the definitive book on the subject of B.S. But what exactly is that? And is it even more damaging than an outright lie? We talk with an expert on B.S. who says it’s time we learned to recognize it — and stop putting up with it.