Ben Valentino, a Political Scientist at Dartmouth University discusses his book, "Final Solutions: Mass Killings and Genocide in the 20th Century" with Jerry Fowler. He explains the concept behind the word "mass killing" which he uses in his book to encompass the intentional killing of 50,000 or more civilians over the course of five or fewer years. Instead of concentrating solely on the common causes of genocide, namely social factors, Mr. Valentino examines mass killings--a wider and more comprehensive field--focusing on the political elites in power, their goals and how they came to power.

Tags: Bosnia, History and Concept, Prevention, Rwanda