What is the main function of the Secret Service aside from providing presidential protection?

The primary function of the Secret Service, apart from its well-known role in presidential protection, is indeed the investigation of counterfeit currency. This responsibility dates back to its establishment in 1865, originally aimed at combating the widespread counterfeiting of U.S. currency that was undermining the financial system. The Secret Service has expertise in forensic analysis, technology, and financial fraud, which allows it to effectively investigate and disrupt counterfeit operations.

In contemporary contexts, the agency has expanded its duties, but the pursuit of counterfeiters remains a core mission, emphasizing its commitment to safeguarding the integrity of the nation's currency and, by extension, the economic stability of the United States. This focus on financial crimes distinguishes the Secret Service from other agencies that may handle issues related to bank robberies, cybersecurity, or domestic terrorism prevention.