21 Amazing Little-Known Facts About the Secret Service

11. And they go to the doctor with the president.

The president even can’t stay alone with a doctor without an agent as an escort, no matter what the president’s problem is.

10. They track all threatening letters.

It’s not a myth. The Secret Service checks all electronic and paper letters that contain any threats (even jocular). This organization also has a database with thousands of types of ink to make the process of investigation easier.