Erica Chenoweth is a pioneering academic whose groundbreaking research on the strategic use of non-violence showed that movements that use non-violent tactics when fighting for the overthrow of a regime are twice as likely to succeed as movements that use violence as a tactic. Her book, Why Civil Resistance Works: The Strategic Logic of Non-Violence, co-authored with Maria J. Stephan, provides an authoritative study of how and why non-violent movements succeed. Chenoweth discusses her book, some of the current uprisings she is studying and tells Mark how growing up in Dayton, Ohio during the crisis in the Balkans helped propel her to a career in international relations.