What happens when the world’s most valuable spy is finally caught? How did British and American intelligence hunt him down? And, was Klaus Fuchs a hero, a villain, or something in between?

Klaus Fuchs' final days as a free man were marked by growing suspicions, clandestine exchanges, and a relentless pursuit by MI5. The secrets he passed had already set the stage for a nuclear-armed Cold War, irreversibly altering the balance of global power. As the truth emerged, so too did the cost of his betrayal - a world reshaped by espionage, ideological conviction, and the stolen intelligence that fuelled an arms race.

Listen as David and Gordon take you inside the mind of the man who stole the bomb - and the world he left in his wake.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

How did a Russian spy end up at the heart of the Manhattan Project? What happened when Soviet intelligence lost track of their own spy? And how did one man hand Stalin the bomb on a silver platter?

Klaus Fuchs was already one of the most valuable spies in history, feeding atomic secrets to the Soviet Union. But when he disappeared in 1944, his handlers feared the worst. In reality, he was about to get even closer to the ultimate prize: the blueprints for the atomic bomb.

This week, Gordon and David uncover how Fuchs embedded himself in Los Alamos, the most classified site on Earth, and carried out one of the greatest intelligence coups of the 20th century.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

What makes a man betray his closest friends? How did a German refugee help Stalin build the bomb? And why did British intelligence fail to spot the most dangerous spy in the Manhattan Project?

Klaus Fuchs was brilliant, quiet, and unassuming. A physicist at the cutting edge of nuclear science, he worked at the heart of Britain’s secret atomic weapons program before being sent to the United States to join the Manhattan Project. But, all the while, Fuchs was passing the most closely guarded secrets of the West straight to the Soviet Union.

Listen as David and Gordon uncover how Fuchs’ communist beliefs and wartime alliances led him to become one of the most infamous spies of the 20th century.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Who was the Russian spy working under Oppenheimer to build the atomic bomb? Why was it so dangerous to be a communist in Nazi Germany? And how did a young science prodigy become one of the most notorious spies in history?

Klaus Fuchs was born into a left-wing family at the beginning of the 20th century. Vehemently opposed to the fascist politics of his German homeland during the 1930s, Fuchs flees Hitler's repressive state and finds himself caught up in the horrors of World War Two. When a group of ambitious communists reach out to save him, his life is changed forever. This is the story of the communist spy who infiltrated the Manhattan Project.

Listen as Gordon and David begin to tell the fascinating tale of Klaus Fuchs, the atomic spy.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Donald Trump has paused all intelligence sharing with Ukraine. What does this mean? What intelligence was being shared? How dependent are Ukraine on this? And what impact will this have on the war?

Listen as Gordon Corera and David McCloskey discuss the latest developments in Ukraine.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

When the CIA is forced to downsize, who gets cut? What happens to the intelligence left behind? And how does political control change the way spies operate?

In the late 1970s, Jimmy Carter’s CIA director launched a brutal purge, firing hundreds of intelligence officers in what became known as the Halloween Massacre. Now, with Trump taking his own axe to Langley, David and Gordon ask: is history repeating itself? And what happens when America’s spies become the target?

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

How do politicians control the CIA? What happens when politics affects the way it is run? And how often does the White House clash with Langley?

Trump is trying to bring the CIA more directly under his control. He wants to reduce the size of it and re-order it's priorities. But he's not the first President to try to interfere at Langley. This week on The Rest Is Classified, David and Gordon look at Trump's CIA reforms but also take an eye to history to look at Jimmy Carter's CIA reforms that led to Halloween Massacre...

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Can nuclear missiles really just disappear? Why is Greenland so important to the security of the United States? And will Donald Trump go all the way with his plan to buy this Arctic island?

A plane carrying nuclear weapons crashes in the Arctic and the effects ricochet through history. From seals born with deformities to radioactive permafrost, the presence of nuclear weapons on Greenland is seismic and very controversial. So, with Donald Trump threatening to buy the world’s largest island, David and Gordon are asking: why?

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Donald Trump has made it clear that he wants Greenland, but why? What is it about this largely barren, ice-covered island that extends well into the Arctic circle that he so desires? And how far back does this interest go?

Filled with rare minerals that are becoming increasingly valuable due to modern technology, critically placed for access to Arctic sea lanes, and home to key US military infrastructure, Greenland is of major security importance. But this importance stretches back into the 20th century. Listen as David and Gordon discuss the secret history of Greenland and all the bizarre events of the 20th century that have led to it being on Donald Trump’s wishlist.

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Was an umbrella too obvious a murder weapon for an assassination in the heart of London? Why were the KGB hesitant to do the Bulgarian government's dirty work? And how do scientists work with spy agencies to identify lethal poisons?

Georgi Markov, the Bulgarian dissident writer, is dead. But, who murdered him? Was it the Bulgarians or the KGB? What about the British? In the aftermath of Markov's poisoning, the Metropolitan Police are struggling to discover the perpetrator behind the umbrella.

Listen as David and Gordon continue the story of the mysterious murder of a Bulgarian BBC broadcaster on Waterloo Bridge, and ask: will the assassin ever be caught?

-------------------

Order a signed edition of David's latest book, The Seventh Floor, via this link.

-------------------

Get our exclusive NordVPN deal here ➼ www.nordvpn.com/restisclassified

It’s risk-free with Nord’s 30-day money-back guarantee!

Email: [email protected]

Twitter: @triclassified

Assistant Producer: Becki Hills

Producer: Callum Hill

Senior Producer: Dom Johnson

Exec Producer: Tony Pastor

Learn more about your ad choices. Visit podcastchoices.com/adchoices