In the end, this episode was a true-life spy vs. spy story. Both the KGB and the U.S. intelligence community ended up spending a lot of time and money bugging and de-bugging, tying up valuable resources. And it is likely the KGB followed the NSA’s and CIA’s efforts since it had bugged the equipment. Readers interested in a detailed technological Cold War spy story pitting U.S. technical spy sleuths against Soviet spies hell-bent on installing listening devices in the U.S. Moscow Embassy, will profit from this book.