Clever Code Names the Secret Service Has Ever Used

Carpet

White House garage
The Secret Service's initial responsibility was to investigate the counterfeiting of U.S. currency, which was rampant following the American Civil War. The agency then evolved into the United States' first domestic intelligence and counterintelligence agency. Many of the agency's missions were later taken over by subsequent agencies such as the Federal Bureau of Investigation (FBI), Central Intelligence Agency (CIA), Drug Enforcement Administration (DEA), Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), and IRS Criminal Investigation Division (IRS-CI).