National Geographic: Inside the U.S. Secret Service 20 years old

The first and last line of defense for the president.

Even though they are frequently seen flanking presidential convoys in their trademark dark suits and sunglasses, little is truly known about the insulated world of the United States Secret Service. National Geographic's Inside series delves deep into the inner workings of the secretive organization for an unprecedented behind-the-scenes look at the upper echelons of national security.

Credits

National Geographic: Inside the U.S. Secret Service Cast

Name	Character
John Benjamin Hickey He was 41, now 61 years old	as Himself - Narrator (voice)

National Geographic: Inside the U.S. Secret Service Crew

Name	Department