Who was Kim Philby? Those closest to him—like his fellow MI6 officer and best friend since childhood, Nicholas Elliot, and the CIA’s head of counterintelligence, James Jesus Angleton—knew him as a loyal confidant and an unshakeable patriot. Philby was a brilliant and charming man who rose to head Britain’s counterintelligence against the Soviet Union. Together with Elliott and Angleton he stood on the front lines of the Cold War, holding Communism at bay. But he was secretly betraying them both: He was working for the Russians the entire time.

Circle of Treason is the first account written by CIA agents who were key members of the CIA team that conducted the intense "Ames Mole Hunt." Sandra Grimes and Jeanne Vertefeuille were two of the five principals of the CIA team tasked with hunting one of their own and were directly responsible for identifying Ames as the mole, leading to his arrest and conviction.

Cambridge spy Guy Burgess was a supreme networker. He also set a gold standard for conflicts of interest, working variously for the BBC, MI5, MI6, the War Office, the Ministry of Information and the KGB. Yet Burgess was never challenged by Britain's spy catchers: his superiors were convinced he was too much of a liability to have been recruited by Moscow. Now, with a major new release of hundreds of files into the National Archives, Purvis and Hulbert reveal just how this charming establishment insider was able to fool everyone for so long.

A legal analyst for NPR, NBC, and CNN, delves into the facts surrounding what has been called the “worst intelligence disaster in US history”: the case of Robert Hanssen—a Russian spy who was embedded in the FBI for two decades.

Guy Burgess was the most important, complex, and fascinating of "The Cambridge Spies" - Maclean, Philby, Blunt - brilliant young men recruited in the 1930s to betray their country to the Soviet Union. An engaging and charming companion to many, an unappealing, utterly ruthless manipulator to others, Burgess rose through academia, the BBC, the Foreign Office, MI5 and MI6, gaining access to thousands of highly sensitive secret documents which he passed to his Russian handlers.

In the aftermath of the Cold War, American intelligence caught three high-profile Russian spies: Aldrich Ames, Edward Lee Howard, and Robert Hanssen. However, rumors have long swirled of another mole, one perhaps more damaging than all the others combined. Perhaps the greatest traitor in American history, perhaps a Russian ruse to tear the CIA apart, or perhaps nothing more than a bogeyman, he is often referred to as the Fourth Man.

Britain's Special Air Service - or SAS - was the brainchild of David Stirling, a young, gadabout aristocrat whose aimlessness in early life belied a remarkable strategic mind. Where most of his colleagues looked at a battlefield map of World War II's African theater and saw a protracted struggle with Rommel's desert forces, Stirling saw an opportunity: Given a small number of elite, well-trained men, he could parachute behind enemy lines and sabotage their airplanes and war matériel.

In The Ghost, investigative reporter Jefferson Morley tells Angleton's dramatic story, from his friendship with the poet Ezra Pound through the underground gay milieu of mid-century Washington to the Kennedy assassination to the Watergate scandal. From the agency's MKULTRA mind-control experiments to the wars of the Mideast, Angleton wielded far more power than anyone knew.

Two years ago, a hostile Prime Minister launched the Monochrome inquiry, investigating "historical over-reaching" by the British Secret Service “to investigate historical over-reaching.” Monochrome’s mission was to ferret out any hint of misconduct by any MI5 officer—and allowed Griselda Fleet and Malcolm Kyle, the two civil servants seconded to the project, unfettered access to any and all confidential information in the Service archives in order to do so. But MI5’s formidable First Desk did not become Britain’s top spy by accident, and she has successfully thwarted the inquiry at every turn.

If anyone could be considered a Russian counterpart to the infamous British double-agent Kim Philby, it was Oleg Gordievsky. The son of two KGB agents and the product of the best Soviet institutions, the savvy, sophisticated Gordievsky grew to see his nation's communism as both criminal and philistine. He took his first posting for Russian intelligence in 1968 and eventually became the Soviet Union's top man in London, but from 1973 on he was secretly working for MI6.

In 1942, in a quiet village in the leafy English Cotswolds, a thin, elegant woman lived in a small cottage with her three children and her husband, who worked as a machinist nearby. Ursula Burton was friendly but reserved, and spoke English with a slight foreign accent. By all accounts, she seemed to be living a simple, unassuming life. Her neighbors in the village knew little about her. They didn’t know that she was a high-ranking Soviet intelligence officer. They didn’t know that her husband was also a spy, or that she was running powerful agents across Europe.

Spies is the history of the secret war that Russia and the West have been waging for a century. Espionage, sabotage, and subversion were the Kremlin’s means to equalize the imbalance of resources between the East and West before, during, and after the Cold War. There was nothing “unprecedented” about Russian meddling in the 2016 US presidential election. It was simply business as usual, new means used for old ends.

The Talmud says: “If someone comes to kill you, rise up and kill him first.” This instinct to take every measure, even the most aggressive, to defend the Jewish people is hardwired into Israel’s DNA. From the very beginning of its statehood in 1948, protecting the nation from harm has been the responsibility of its intelligence community and armed services, and there is one weapon in their vast arsenal that they have relied upon to thwart the most serious threats: Targeted assassinations have been used countless times, on enemies large and small....

J. Robert Oppenheimer was one of the iconic figures of the 20th century, a brilliant physicist who led the effort to build the atomic bomb but later confronted the moral consequences of scientific progress. When he proposed international controls over atomic materials, opposed the development of the hydrogen bomb, and criticized plans for a nuclear war, his ideas were anathema to powerful advocates of a massive nuclear buildup during the anti-Communist hysteria of the early 1950s.

After the assassination of his wife and son, Gabriel Allon retires from his brutal anti-terrorist career and loses himself in his previous cover job: art restoration. But when Tariq al-Hourani, the Palestinian terrorist responsible for his family’s death, begins a killing spree designed to destroy Middle East peace talks, Gabriel once again slips into the shadowy world of international intrigue. In a global game of hide-and-seek, the motives of Gabriel and Tariq soon become more personal than political.