Mr. Newbold is actively involved in the fields of biometrics and counterterrorism through his work with the Department of Defense. He lives and works in the DC area and continues to compile materia...view moreMr. Newbold is actively involved in the fields of biometrics and counterterrorism through his work with the Department of Defense. He lives and works in the DC area and continues to compile material for an even more comprehensive subsequent edition.view less