This week a Syrian rebel ripped the heart out of a loyalist fighter and ate part of it. You can see it on YouTube. Many people asked “How can people do things like this?” In his new book Evil Men (Harvard UP, 2013), James Dawes explores why people commit horrible atrocities. To get to the root of unbelievable human cruelty, he interviewed Japanese war criminals, asking them why and how they did what they did. The results are surprising, as you will learn in the interview.

By the way, James wrote an excellent op-ed on the Syrian incident here.