U.S. Secret Service

The U.S. Secret Service is a federal agency under the Department of Homeland Security. Its main roles are to protect the President, Vice President, and visiting foreign leaders, as well as ensuring the safety of major National Special Security Events. Additionally, the Secret Service investigates financial crimes like counterfeiting and fraud. Established in 1865, it initially focused on combating counterfeit currency but has evolved to include a significant protective mission, making it a vital part of national security and law enforcement efforts in the United States.