The U.S. Secret Service is an agency of the U.S. government, founded in 1865, to combat counterfeit money.[1] It was initially part of the U.S. Treasury. Subsequently, other duties were handed to it, including guarding the President and other VIPs, monitoring suspicious currency exchanges.
In 2003 it was transferred from the Treasury to the Department of Homeland Security.[1]
The Secret Service is one of the U.S. Federal Police agencies, in which officers are authorized to bear arms.