The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal by Howard Blum


The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal
Title : The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal
Author :
Rating :
ISBN : 0063054213
ISBN-10 : 9780063054219
Language : English
Format Type : Hardcover
Number of Pages : 384
Publication : First published June 7, 2022

A retired spy gets back into the game to solve a perplexing case—and reconcile with his daughter, a CIA officer who married into the very family that derailed his own CIA career—in this compulsive true-life tale of vindication and redemption, filled with drama, intrigue, and mystery from the New York Times bestselling author of The Last Goodnight, It’s a real-life thriller whose stunning conclusion will make headline news.

On a sunlit morning in September 1978, a sloop drifts aimlessly across the Chesapeake Bay. The cabin reveals signs of a struggle, and “classified” documents, live 9 mm cartridges, and a top-secret “burst” satellite communications transmitter are discovered aboard. But where is the boat’s owner, former CIA officer John Paisley?

One man may hold the key to finding out. Tennent “Pete” Bagley was once a rising star in America’s spy aristocracy, and many expected he’d eventually become CIA director. But the star that burned so brightly exploded when Bagley—who suspected a mole had burrowed deep into the agency’s core—was believed himself to be the mole. After a year-long investigation, Bagley was finally exonerated, but the accusations tarnished his reputation and tainted his career.

When Bagley’s daughter Christina, a CIA analyst, married another intelligence officer who was the son of the man who had played a key role in the investigation into Bagley, it caused a painful rift between the two. But then came Paisley’s strange death. A murder? Suicide? Or something else? Pete, now a retired spy, launches his own investigation that takes him deep into his own past and his own longtime hunt for a mole. What follows is a relentless pursuit to solve a spy story—and an inspiring tale of a man reclaiming his reputation and his family. It’s a very personal quest that leads to a shocking conclusion.


The Spy Who Knew Too Much: An Ex-CIA Officer's Quest Through a Legacy of Betrayal Reviews


  • Becca Kate

    Thank you Harper Books for my gifted copy in exchange for my honest review!

    I was instantly hooked when I started reading this book about retired CIA agent, Tennent “Pete” Bagley and his quest to find out the truth surrounding another former CIA officers mysterious death.

    We discover that Bagley was once a star agent turned mole suspect amongst the agency. Ultimately his name was cleared but the damage was done. Years later he is determined to uncover what happened to the deceased agent while at the same time clearing his own tarnished reputation and rekindling his relationship with his estranged daughter as well.

    This all sounds like the plot of a great spy movie right? This is a a true story though! This isn’t my usual type of book but this reads so much like a thriller novel I kept forgetting it was about real people and events. You could tell a lot of research was put into this and the author does such a great job writing an engaging and compelling story. Do yourself a favor and read this book!

  • WM D.

    The spy who knew too much was a very good book. I truly enjoyed reading this book. The plot tells the story about a spy who has gone missing and a former spy has made it his business to find out what happened

  • Carlee Miller

    I enjoyed the inside look at the CIA’s operations, particularly in the historical context of the Cold War. I also admired Pete Bagley’s persistence and dedication in revealing the truth about a CIA mole working for the KGB. This book was really well researched and engaging. This read more like a fiction read as the narrative followed Pete Bagley’s journey to discover the truth and the backstories of the other CIA and KGB agents involved. Thank you to Harper Collins for providing me an advanced copy in return for my opinions on the book! This was a really fascinating look at the CIA and an interesting true story I had not heard of before!

  • Meghan

    Thank you Harper Collins’s for a arc of this book in exchange for my honest review.

    This isn’t my usual type of book but I really loved it. The story was compelling and the author really drew us in with the main characters journey. I felt like I was the one doing all the research and I was the one living this life. I liked learning the history of the spies and about the Cold War. The only downside was that I wish there was more on the riff between the father and daughter. They didn’t really touch on much about that. Otherwise I would definitely recommend this book and I will check out the authors other books as well.

  • Lovely Loveday

    The Spy Who Knew Too Much: Pete Bagley's Quest Through a Legacy of Betrayal by Howard Blum is a well-written and well-researched non-fiction book organized like a good novel. The story follows the end of the Cold War and enters into the Cold Peace. The book has a surprise ending with an unlikely friendship.  A captivating read that is sure to stay with you long after reading. 

  • Nancy

    This is a really well written non fiction book that is organized like a good novel. Pete Bagley is a rising CIA star, keeping a cool head and using his extraordinary memory to catalog information. The book is told in past and present tense. The present begins in 1978 when a cover is blown in Moscow. Shortly thereafter, a former CIA agent disappears off his tricked out boat. Pete Bagley, retired CIA agent takes note and activates himself to solve some mysteries that cut his promising career short. The present moves forward from there to Bagley’s death in 2014.

    The past tense sets the stage of the Cold War and double agents, defection, moles, and misinformation. Spoiler alert: One thing Russia has down Pat is disinformation. The author writes the book like a novel but is not as the cast of characters is large. Rather than take notes, I followed along well enough but will probably read it again. Absolutely fascinating. The story follows the end of the Cold War and enters into the Cold Peace. The book has a satisfying ending with an unlikely friendship developing. So intriguing is the unlikely friendship, I was led to an earlier work by the protagonist, Pete (Tennent) Bagley and am currently reading about the KGB side of the Cold War. Also fascinating but the cast of characters have Russian names so I’ve mostly given up on keeping track of them.

    Better than any spy novel or movie I’ve seen.

  • Mal Warwick

    According to most expert observers of the intelligence community, James Jesus Angleton (1917-87) had long since descended into paranoia when he retired in 1974 after two decades as CIA chief of counterintelligence. During his last years in the service, Angleton had torn the agency apart in a futile search for a KGB mole. Under William Colby, who was Director from 1973 to 1976, the CIA closed ranks. It became anathema to claim that the KGB had ever penetrated the agency. But now, in The Spy Who Knew Too Much, popular historian Howard Blum makes a persuasive case that Angleton was right all along. In fact, he demonstrates, there was not one but at least two moles. And the nation’s security system suffered grievous losses as a result.

    JIM ANGLETON KNEW THERE WAS A MOLE
    In “A note to the reader” at the outset, Blum writes that “my intention is to reveal one of the last great secrets of the Cold War. It is also the true story of one spy’s quest through a legacy of betrayals to solve this mystery.” That spy was Tennent “Pete” Bagley (1925-2014), whom Blum casts as the hero of his story. During decades of intensive digging through thousands of pages of obscure official documents, and in interviews with other intelligence officers at the KGB as well as the CIA, Bagley proved to Blum’s satisfaction—and mine—that the mysterious mole Angleton had pursued was a man named John Arthur Paisley (1920-78?).

    A MOLE-HUNTER AS DEVOTED AS ANGLETON HIMSELF
    In fact, as Pete Bagley set out on his quest in 1978, he was already well aware of at least one long-time mole in the agency—a KGB “defector” named Yuri Nosenko who Bagley knew was not a defector at all. Bagley himself had made the agency’s first eye-to-eye contact with Nosenko in Vienna in 1964 and interrogated him for months, sometimes brutally. The enormous number of contradictions in the man’s story convinced him that the KGB had planted him to divert attention from a highly placed American who was the CIA mole Angleton was looking for. But Bagley’s superiors disagreed, and at length he was accused of paranoia, himself investigated as a mole, and discredited. The experience led him to remove himself from the drama in Langley and eventually to resign from the agency at the age of forty-six.

    TWO SUICIDES WHO NEVER KILLED THEMSELVES
    Six years after his retirement from the CIA, Bagley was startled by an unlikely coincidence. “Two deaths—each purportedly a suicide, each with its deep roots in the secret world, each with its own perplexing mysteries” caught his attention in 1978. Bagley was living in Brussels after stepping down as CIA station chief there. One of the men who died was a KGB defector who had provided invaluable information to the agency. The other was a long-serving CIA senior officer. In both cases, the circumstances made it clear to Bagley that suicide was unlikely. And as he dug deeply into the available (and sometimes secret) facts, he became convinced that neither had killed himself.

    AN AMATEUR DETECTIVE WITH A SPARKLING RESUMÉ
    Bagley brought to the task both an obsessive concern for the truth and a passionate commitment to serve his country. He was Navy through and through. “A small flotilla of warships, from frigates to cruisers, had been christened with the names of his father and uncles.” His two brothers each rose to the rank of four-star admiral. And his “Uncle Bill” was five-star Fleet Admiral William D. Leahy, who was the highest-ranking US military officer to serve in World War II and was both FDR and Harry Truman’s Chief of Staff.

    Bagley himself was unable to follow his brothers at Annapolis because of his “dodgy eyesight.” His career in the CIA was distinguished, involving him in some of the agency’s biggest wins over the years. Colleagues believed he would some day become Director of the CIA. This was not a man to himself betray his county, as some in the CIA maintained.

    UPENDING THE HISTORY OF THE COLD WAR
    Blum’s account of the course Bagley took in his decades-long investigation follows a serpentine course through the officer’s career and the history of the intelligence battles throughout the Cold War. Summarizing the story is a challenge beyond my capabilities. Suffice it to say that, step by step, Blum demonstrates how Bagley made the case the CIA was infiltrated for decades by at least two moles in the pay of the KGB. Naturally, bureaucracy—and especially espionage bureaucracy—being what it is, the CIA will never acknowledge the truth of Bagley’s findings. That’s understandable, since the events Bagley investigated happened so long ago. Unfortunately, it’s all but certain that most historians will buy the official line and distort a crucial chapter in the history of the Cold War.

    ABOUT THE AUTHOR
    Howard Blum is the author of fifteen nonfiction books, many of them about the history of espionage. He won the Edgar Award for one of his true crime books. Blum is a former reported for the Village Voice and the New York Times and is a contributing editor at Vanity Fair. He was born in New York City in 1948 and earned a bachelor’s degree and a master’s in government from Stanford University. He is divorced and now lives in New York and Connecticut.

  • Philip

    A mole not in your yard! A very descriptive and well written true story. Howard Blum delivers.

  • Tomasz

    Once again, Tennent Bagley's case gets a second rate write-up. Too much here is derived directly from Bagley's own "Spy Wars", and it shows.

  • Florence

    This is a real life thriller, more astounding than fiction. Cold war secrets of the CIA, long buried are revived. I reached two conclusions; Russians are the cleverest, most devious spies on earth. The second conclusion: the CIA will devour its own agents without mercy if they dissent from accepted dogma. Groupthink is always dangerous. In an intelligence agency it is ridiculously perilous.

  • Jim

    What an irritating book. I toyed with giving it two stars, cause I was grinding my teeth. Was it terrible? No. There was a lot of really interesting and compelling (if not disturbing) information, and the story itself could be riveting, but way too much padding, and repetition, and unneeded musing. Get on with it man! And a lot of going back and forth in time.

  • John McDonald

    In the BBC adaption of "Smiley's People", George Smiley visits the showroom of the arts dealer known in his trade as Senor Benatti. Smiley asks the receptionist in the showroom (as she cleans her fingernails) if she would kindly inform Senor Benatti that Mr. Angel (Smiley's cover name) would like to see him. The receptionist, unaware that Smiley was "Senor Benatti's" senior officer at British Intelligence (MI6) informs Smiley (Mr. Angel) that Senor Benatti is unavailable and cannot be disturbed. At Smiley's urging, she calls and Senor Benatti immediately welcoms George Smiley. We learn that Senor Benatti is Toby Esterhazy, himself the head of lamplighters at MI-6 in a prior life where Smiley unmasked the Service's mole.

    Smiley wants to know why General Vladimir did not contact his set-off Toby (known as Hector for this operation) first instead of Smiley, since Toby was designated Vladimir's "postman", assigned to deliver messages to Smiley who was leading the Russian emigre's efforts on behalf of the Service.

    Toby pauses at the question. He says, George, do you remember what you used to preach loudly to all Service agents, operatives and analysts at Sarrit? Do you remember, George, he insists? Smiley quietly says, no Toby, what was it? George, you used to tell everyone, once you have left the Service never, ever engage in "private enterprise." "When it's over, it's over."

    This is advice Pete Bagley never accepted. This scene from "Smiley's People" resurrected itself as I read this book, a thrilling story without question, but incomplete at best and beset with unsupported, if dubious evidence. Why was Pete Bagley conducting his 'private enterprise' to find the mole at the heart of the CIA's directorate of operations? Isn't this the job of the CIA's agency director, who at least for part of the time was the discredited James Jesus Angleton? Angleton himself, an open alcoholic and a close friend and confidant to Kim Philby, the infamous Russian mole who had burrowed deeply into MI-6's operations and who was finally revealed to have been responsible for rolling up network after network of MI-6 (and probably American) agents, many being killed by Russian operatives once uncovered, became single-minded once Philby's treason had been revealed that the same may be happening at the CIA and became so obsessive about uncovering the mole at the heart of the CIA that he made unsupported and unsupportable accusations that ruined the lives and careers of dozen of honest CIA operatives and employees.

    Angleton's unbridled and unauthorized quest for the mole modeled and motivated Pete Bagley's 'private enterprise' operation, although Bagley was more circumspect in his accusations and conclusions. Nevertheless, Bagley's evidence consisted, if Blum's account here is correct, almost entirely of conjecture, speculation, and unproved hypotheses. Bagley was so obsessive in uncovering the mole at the heart of CIA counterintelligence that he resorted time after time to confirmation bias, mostly I think to be able to say he had found a solution to the CIA's mole problem.

    Neither Blum nor Bagley makes the sale that the mole was who Bagley believed it was. The reason these operations are conducted with the oversight of the agency is to ensure that internal protocols are followed and that the investigator does not in his zeal disclose other matters the intelligence services wished not to have revealed.

  • Bookreporter.com Biography & Memoir

    The question that THE SPY WHO KNEW TOO MUCH attempts to answer is whether or not, in the pre-glasnost era, the KGB had a mole in the CIA who was never caught. Prolific author and former New York Times investigative reporter Howard Blum tells a convoluted story about Tennent “Pete” Bagley’s quest to unearth the mole, along with Blum’s own efforts to add context to that quest.

    A member of the CIA’s elite Soviet Bloc division, Bagley was working in Switzerland in the early 1960s when KGB agent Yuri Nosenko offered his services. Bagley interviewed him on multiple occasions, and over time he came to suspect that Nosenko, who defected to the U.S. after JFK’s assassination (Nosenko had conducted the Soviet “investigation” of Lee Harvey Oswald), was a plant. Part of his suspicion had to do with the remarkable similarity between his stories and the file of Anatoliy Golitsyn, another KGB agent.

    However, Bagley was unable to persuade his superiors. Instead, he himself came under suspicion of providing intelligence to the Soviets. Certain that he was the victim of self-serving CIA politics, he retired peacefully to Brussels --- until the apparent death of John Paisley, a CIA official, in 1978 persuaded him to return to DC. Despite questions about the body and why Paisley was on a sailboat with sophisticated electronic equipment, his death was ruled a suicide. Although he was barred from the CIA archives, Bagley launched an exhaustive search and ultimately concluded that the purported victim was the mole.

    Blum’s access to Bagley’s writings and other sources enables him to craft a cohesive and convincing narrative, despite stonewalling from intelligence agents and a lot of padding and idle speculation on the part of the author. But readers who stay focused will find this story about the politics of spycraft on both sides of the Iron Curtain to be absorbing.

    Reviewed by Lorraine W. Shanley

  • Eugenia

    Facinating! I could not put it down. There was nothing dry or boring about this detailed history -- a definite look behind the curtain of the lives of spies. I must confess that how I assumed it was going to end was way off the mark. Toward the end the number of flashbacks could have been reduced but through out the book they were not only interesting but necessary building blocks to the entire story. I do have questions and would love a chance to visit with Howard Blum.

  • ReadaBook

    I did not finish this book. As someone who had a career in this field, I expected to find this book engrossing and interesting.
    Maybe if I had stuck with it, I might have become engrossed. Unfortunately, I found the writing style kind of plodding. I found the writing skill not great at all - and this guy has written several books? Yikes….well, I won’t be reading them.

  • Ted Haussman

    Pete Bagley led the CIA’s counterterrorism unit towards the twilight of his career. He helped to recruit and ran a number of Soviet agents. He also helped a few to defect, including one who claimed to be a KGB agent in the early 1960’s. But, once this former KGB agent was in America and Bagley debriefed him over multiple sessions, Bagley began to see in consistencies in what the agent he said. He also seemed ignorant of basic KGB facts and protocols. Bagley began to suspect that this “KGB” defector was not, in fact, genuine, but a Soviet provocateur who was sent by his handlers on a mission of purposeful disinformation and distraction. But why?

    Over the remainder of his career as he reflected on the compromise of certain Soviet agents that the CIA had turned and more recent ones, that the answer appeared to be that there was mole in the CIA who was betraying these agents. Bagley also suspected that there was a connection to these compromises and what he believed to be the fake KGB defector. He set out to test his theory and yet in the process a rift occurred in the CIA between those who believed in a CIA mole like Bagley and those who tarred the suspicious as delusional and paranoid. Bagley lost that battle and decided to retire early. But he never gave up.

    In his retirement, he continued his research, built his theory and ultimately came to a startling conclusion, which, if you believe the evidence, appeared to vindicate Bagley.

    This wonderful, suspenseful book tells the tale.

  • Lindsay Luke

    Pete Bagley was a cold war era CIA operative. He was a protege of counterintelligence chief James Jesus Angleton and shared his conviction that there was a mole in the CIA. When Yuri Nosenko defected in 1964, Bagley became convinced he was a double agent, sent by the KGB to convince the US that there was no Russian involvement in the Kennedy assassination. Nosenko was held and interrogated for 3 (!) years. Ultimately, the CIA decided the defection was genuine and Nosenko remained in the US, with a new identity and on good terms with the CIA, until he died in 2008. Amidst this intrigue, Bagley himself came under suspicion. He cleared his name, but his career stalled and he retired from the CIA in 1972.
    Meanwhile, American agents were compromised, so it seemed like there might well be a mole - Nosenko or someone else. In the next several years, Edward Lee Howard, Aldrich Ames, and Robert Hanssen were revealed to be working for the Soviets. Bagley continued to have doubts about Nosenko.
    In 1978, retired CIA man John Paisley disappeared under suspicious circumstances from his sailboat on the Chesapeake Bay. A body turned up days later. It was identified as Paisley and quickly ruled a suicide despite contradictory physical evidence. Paisley had been involved in the interrogation of several KGB agents and had issues in his personal life. Hearing about this, Bagley thought perhaps Paisley was the mole and set about investigating. This book is the story of that investigation.
    The author, journalist Howard Blum, makes a convincing case that Bagley was right about Nosenko and Paisley. He also shows Bagley going down a rabbit hole and illustrates that in the spy game, it's very hard to tell what is really going on. Most of the people involved with Nosenko and Paisley have passed away so, unlike in spy novels and films, we may never learn the complete story. I grew up in the DC area. I've been to some of the places discussed, heard of many of the incidents, and known some people who were probably spies or analysts. I recall Paisley being found in the Bay but didn't know all the details at the time. This was an interesting read.

  • Marti Martinson

    Wow. Educated, degreed CIA agents can't keep the showers running at their sex club (page 235) to pay the mortgage on renovating a ski resort. 30 years a queer with TS/SCI, and I say it again: "heterosexuals should stop procreating and should not be granted clearances."

    In an otherwise totally engaging story (about which I knew nothing), the four-times mentioned Russian defector who played match-maker to two kids of spies (page 48) really freaking annoyed me. If I wanna read Dominick Dunne, or Tom Wolfe, or even Kathleen Woodiwiss, I'll read them. I don't need freaking doe-eyed young lovers who'll breed more spies in non-fiction. IDGAFF.

    Complete sentences. Subject/verb agreement. Nouns with adjectives. Verbs with adverbs. Engrossing plot. Excellent pace. Believable dialogue. Tense situations. All comptetent writing.

    The saddest part: (page 259) "Washington's gay bars were the KGB operatives favorite hunting grounds." That was the 70s. By the 90s, when I had my clearance, I wonder if Fireplace, Mr. P's, Frat House, J.R.s, Chesapeake House, the Glory Hole, etc., still had agents there trying to blackmail people. I never took a Russky home, but I did meet a nice Polish boy once.

  • Thrillerswineandchill


    Time for a genre change: non fiction … that reads just like a novel 📖

    “The Spy Who Knew Too Much” by Howard Blum is a well researched and exceptionally organized true story of CIA agent Pete Bagley🕵️‍♂️

    This book flips back and forth between 1978 and 2014! Bagley was a well respected Agent who was on the move up the CIA ladder. However, he was suspected to be a mole which tarnished his reputation within the agency. As a retired spy, Bagley makes it his personal mission to find the REAL mole and clear his name. He also works hard to build back his relationship with his daughter who has married into the family that led to the demise of his career.

    I feel like I became better educated on the Cold War, the CIA, double agents, etc. Although this is a book outside my usual genre, I found it mysterious, insightful, clever and intriguing all wrapped into one!

    BOOK REVIEW: 🖤🖤🖤/5

    Thank you kindly to Harper Collins and Howard Blum for a gifted copy in exchange for my honest review! This book releases on June 7, 2022!

  • Josh

    Listened to the first half in the car during a long drive then upon arriving at my destination proceeded to immediately read the last half. This book gave me a new appreciation for how difficult it was to be a spy during the Cold War. Aside from the technical complexity and risk to physical well being of field operations — which are covered thoroughly in this book —, there was tremendous ambiguity about who was loyal to the cause. Everyone in the CIA with access to sensitive Soviet information seemed to come under suspicion — except for the actual double agents working at the CIA on behalf of the Soviet Union! It was truly a “wilderness of mirrors”, as described by the T.S. Eliot- loving CIA Counterintelligence Chief. The combination of mystery, thriller and history made this book difficult to pause or put down, particularly once the primary traitor’s story began to be told. It was that character’s biography and what he was able to get away with throughout his life that left me shocked and devastated.

  • Mark Maddrey

    I think this non-fiction book could have been titled, the story that winds around and around and around itself. Indeed, the “Spy Who Knew Too Much” is one of those books that proves truth is really stranger than fiction. I think that overall Mr. Blum did an amazing job of research and organization in order to make this understandable and I was simply amazed by the craziness of the story. At some times it is simply too unwieldy to manage and I found myself working hard to remember which Soviet defector was which, but in the end I felt like I had a good grasp on the facts. I real the author’s note about sources and facts and while I think he makes a good case for what he has done, there are times were I was a bit put off by the use of quoted dialog in situations where there is not any recorded source. But that is a small quibble, he makes the story move like a thriller and I was happy with the final product.

  • Beth Peterson

    I've read many spy/mole non-fiction books before that were disappointing, but not this one! I was prepared to probably start this story and then give it up, but instead had a hard time putting it down.
    Tennant 'Pete' Bagley was a rising star in the CIA before his adamant suspicions of a defector, and his belief that there was a mole deep in the agency caused the derailment of his career. He gets the opportunity in his retirement to reinvestigate his suspicions, and this book is that tale.
    This was quickly paced, well written and fair in its treatment of contemporary people and times. And it was an enlightening and sometimes maddening expose of how not even our brightest people nor our revered institutions are immune to the vagarities of human nature and office politics.
    Well done, Mr Blum.

  • Karren

    The sheer number of characters in this book made it hard to follow but luckily there was a lislt of them in the front of the book. An ex CIA officer knows there has been a mole in higher eschilons of the organization. This is hunt to find the mole through endless research and careful documenteries is rewarded after years of hunting as he uncovers the unlikely man who has been in the forefront of the organization for many years.