Matt Crawford speaks with Dr. Stephen Cohn about his book, All Bleeding Stops: Life and Death in the Trauma Unit. With over 40 years of experience Dr. Cohn brings a lot to the table and gives his readers an intimate look at what it is like to work in a trauma center. A good trauma surgeon must be expert in dealing with calamity and Cohn shares some of his funniest and most harrowing cases. This also shows us how policy can affect safety and the volume of cases these surgeons have to deal with.