Gregory Hartley's expertise as an interrogator first earned him honors with the U.S. Army. More recently, organizations such as the Defense Intelligence Agency, Navy SEALS, and federal law enforcement agencies seek his insights into what suspected terrorists--as well as celebrities--really mean when they answer tough questions. He resides near Atlanta, Georgia.
Maryann Karinch, a communications consultant and author of Lessons from the Edge: Extreme Athletes Show You How to Take on High Risk and Succeed, Boot Camp, and Telemedicine (New Horizon Press), holds bachelor's and master's degrees from The Catholic University of America. She lives in San Mateo, California.