Kessler discusses a series of cases of FBI agents identifying and capturing Soviet spys. While the stories are interesting, in several cases the Soviets, through employing poor tradecraft, did more to ensure their capture than the FBI agents tasked with following them. Their capture does not necessarily reflect anything fascinating that the FBI did, but the KGB's own mistakes. Likewise, several of the Americans who are captured failed to employ any measures to protect themselves, virtually ensuring their capture. Overall, it seems that Kessler was given access to good-news stories that make the FBI look good, and he does not critically examine what they may not be telling him.
Of course, what the FBI does not tell Kessler is that while FBI agents were solving relatively easy cases, Ames and Hansen were doing more damage to America than any spy the FBI captured in the 1980s. That these stories only came out years later highlights the weakness of this book. Kessler should have been more critical of the cases that he was made aware of and more deeply explored the possibility that there were agents, on either side, effectively employing tradecraft.