Drexel University criminal law professor Adam Benforado says there's plenty of evidence that our system of justice is fundamentally broken. In his new book, "Unfair," he writes that our background and experiences shape our view of seemingly objective facts. And well-intentioned police, lawyers, judges and juries can make terrible and lasting errors. He spoke June 23, 2015 at the Commonwealth Club of California. Retired Judge LaDoris Cordell, moderator.