** spoiler alert ** Excellent book. It's more about the missions the NSA were involved in like the Cuban Missile Crisis and Vietnam. It also revealed some dark secrets that never came to light: how war-hungry military officials thought about bombing U.S. cities in order to start a war with Cuba and the incident with Israel (accidentally) bombing the Victoria.

It also revealed how the NSA is very behind in keeping up with the latest technology and may catch up.

Military lingo is used extensively in this book so you may get confused at some of the terms in the book.