ROBERT K. WITTMAN spent twenty years as an FBI special agent. He helped create and was senior investigator for the bureau’s Art Crime Team. He has represented the United States around the world conducting investigations and instructing international police and museums in investigation, recovery, and security techniques. He is president of the international art security firm Robert Wittman Inc. Contact him at www.robertwittmaninc.com
JOHN SHIFFMAN is an investigative reporter for The Philadelphia Inquirer. A lawyer and former associate director of the White House Fellows program, he has won a dozen journalism awards and was a 2009 finalist for the Pulitzer Prize. Contact him at www.johnshiffman.com