Final answer:
The Secret Service is the federal agency responsible for personnel security protection and combating counterfeit U.S. currency.
Explanation:
The federal agency that deals with personnel security protection and counterfeit U.S. currency is the Secret Service.
The Secret Service is responsible for protecting the President, Vice President, and other high-level officials, as well as investigating crimes related to counterfeit currency.
Additionally, the Secret Service carries out investigations related to financial crimes and cybercrimes.
Learn more about Federal agencies dealing with security and currency protection here:
https://brainly.com/question/17742028
