Juliette N. Kayyem is on the faculty at Harvard’s Kennedy School of Government. She most recently served for President Obama as Assistant Secretary for Intergovernmental Affairs at the Department of Homeland Security. She has spent over 15 years in senior positions in state and federal government, including as Massachusetts Governor Deval Patrick’s homeland security advisor and a legal advisor to US Attorney General Janet Reno. Ms. Kayyem is the author of numerous books and articles on counterterrorism and national security, and her column is distributed worldwide by the New York Times wire. She is a graduate of Harvard College and Harvard Law School. Ms. Kayyem tweets from @Juliettekayyem.