"Secret investigations and tracking down criminals are just the beginning of what members of the FBI do. Find out what FBI agents do to keep the United States safe"--
"Controlling crowds and protecting the president are just the beginning of what members of the Secret Service do. Find out what Secret Service agents do to keep the United States safe"--
"Drug busts and arresting criminals are just the beginning of what members of the U.S. Marshals do. Find out what U.S. Marshals do to keep the United States safe"--