Ellie Singer and Anna McNeil, two Yale University students, join Christiane Amanpour from New York to discuss why they're suing their university and nine of its fraternities. David Spiegelhalter, the statistician and author of "The Art of Statistics" talks about why numbers are often misleading. Our Hari Sreenivasan talks to physician Jonathan Metzl about his book "Dying of Whiteness". via Knit