Agostino von Hassell has written about the U.S. Marine Corps, West Point, and military food. He taught classes on counterterrorism with a heavy emphasis on intelligence issues at John Jay College of Criminal Justice. He runs a consulting group in New York engaged in national security issues and trade problems. His grandfather Ulrich von Hassell was one of the participants in the July 20, 1944, plot.
Sigrid MacRae graduated from Columbia University and has been an editor and translator. She writes on history and art and lives in New York.