Martha Crenshaw is a pioneer in terrorism studies. Her recent books include “Explaining Terrorism” and “Countering Terrorism.” Crenshaw is a senior fellow at the Center for International Security and Cooperation and the Freeman Spogli Institute for International Studies at Stanford University and a professor emerita of political science. Learn more about Martha Crenshaw here: https://cisac.fsi.stanford.edu/people/martha_crenshaw?combine=book