U.S. Secret Service

U.S. Secret Service is part of the Department of the Treasury. The Secret Service is best known for its role in protecting the President and Vice President, members of their immediate families; former Presidents, their wives or widows, and their children (up to the age of 16); presidential and vice presidential candidates; and heads of state from other countries who come to visit the United States. However, the Secret Service is also responsible for enforcing laws against counterfeiting.