Erich Marquardt is a Senior Editor with the Combating Terrorism Center. He is also the editor-in-chief of the CTC Sentinel, a leading counter-terrorism journal. Prior to his work at CTC, Mr. Marquardt was the head of Global Terrorism Analysis at The Jamestown Foundation, where he was the editor of the twin counter-terrorism publications, Terrorism Monitor and Terrorism Focus. He is regularly interviewed by media outlets such as Reuters and recently appeared on CBS News with Katie Couric. Mr. Marquardt is a graduate of Purdue University and is currently based in Washington.