Dr. Jonathan D. Rosen is Assistant Professor in the Professional Security Studies Department at New Jersey City University. Dr. Rosen earned his Master’s in political science from Columbia University and received his PhD in international studies from the University of Miami in 2012. Dr. Rosen’s research focuses on drug trafficking, organized crime, and security. He has published 20 books with Routledge, Lexington Books, Palgrave Macmillan, the University of Florida, and the State University Press of New York. He has published journal articles in Trends in Organized Crime, the Journal of Criminal Justice, Deviant Behavior, International Journal of Offender Therapy and Comparative Criminology, and Contexto Internacional, among other journals. He has participated in grant-funded research studies in El Salvador, Guatemala, Honduras, Nicaragua, Colombia, and Mexico. In 2017, for example, Jonathan and his colleagues at Florida International University interviewed and surveyed nearly 1,200 active and former gang members in El Salvador.