The U.S. Department of State Bureau of Diplomatic Security is one of America’s most potent assets in the fight against terrorism and crime. In addition to serving as the security and law enforcement arm of the State Department, the Bureau of Diplomatic Security (DS) supports police departments and law enforcement agencies with their investigative needs abroad. For example, DS agents coordinated with the Arlington, Virginia, Police Department and the U.S. Marshals Service to find Thomas Koucky, an admitted child molester who fled the United States to avoid prosecution. Within two days of learning of the case, DS agents located Koucky in Guatemala and returned him to the United States.