CIA is known as America's first line of defense - but who protects CIA? On this episode, Dee and Walter sit down with a member of CIA's protective service - the unit charged with keeping CIA personnel and facilities safe. They'll discuss what it takes to qualify for that team, the training its officers undergo, and the importance of not calling a day "quiet" until it's over.

Look Inside FILE 009

Want to dive deeper into today’s episode? Here's a look into Langley's (unclassified) files:

Where did David learn to master a controlled vehicular spin? Check out the FLETC website.

Interested to joining CIA's protective service cadre? See the requirements and desired qualifications.

Looking for more on today’s trivia answer? Your friends at the CIA World Factbook have you covered.