Security Operators: CIA held up Benghazi rescue

(CNN)– Three men that survived the attack on U.S. compounds in Benghazi, and who lost friends there, were part of the global response staff – highly skilled military special operators – that were providing security.

Mark Geist, Kris Paronto, and John Tiegen put their lives on the line that night to save others. They told their stories to Boston University journalism professor Mitchell Zuckoff for the new book: "13 hours: The Inside Account of What Really Happened in Benghazi."

The biggest headline from the book is the wait time between when diplomatic security special agents began radioing for help, saying the compound was under attack, and when response staff actually left the CIA annex, three-quarters of a mile away, to try and stop it.

In the video above, Geist, Paronto, and Tiegen tell CNN's "The Lead with Jake Tapper" what happened when they got that distress call over the radio.