Mike Thomson returns with the investigative history series, starting in Dublin in 1922. Read more
The British Gunner and the Irish Civil War
Mike Thomson returns with the investigative history series, starting in Dublin in 1922.
GCHQ: Keeping the Last Great Secret
Mike Thomson discovers how close Britain's greatest cold war secret was to being exposed.
The BBC and the Hungarian Holocaust
Mike Thomson investigates the role of the BBC Hungarian Service in World War II.
MI6 and the Media
Jeremy Duns examines links between MI6 and the British media during the Cold War.
Did the 1916 Dublin Rising catch the cabinet by surprise? Author Nick Rankin investigates.
Votes for Victorian Women
Sarah Richardson discovers a document which shows that women in Lichfield voted in 1843.
Mike Thomson examines documents revealing British brutality in Kenya in the 1950s.
Mike Thomson explores a document pointing at American treachery prior to Pearl Harbour.
The Hyderabad Massacre
Using new documents, Mike Thomson investigates a largely forgotten massacre in India.
The Palme Assassination
Gordon Corera travels to Stockholm to investigate the assassination of a prime minister.
The Saur Death List of Afghanistan
David Loyn investigates how a lost record is helping Afghanistan address its painful past.
The Hague Warning
Heather Jones explores a lost intelligence report warning of Germany's invasion of Poland.
Sanchia Berg rediscovers the lost trail of the MI5 spy who was left out in the cold.
The Strange Voyage of the Blonde Angel
Dominic Streatfeild investigates the case of Argentine POW Alfredo Astiz in 1982.
The Crypto Agreement
Gordon Corera reveals evidence of a secret deal between a code-machine company and the NSA
The Albania Operation
For Radio 4's Cold War season, Gordon Corera examines CIA attempts to subvert Albania.
Knowing Jurgen Kuczynski
Anne McElvoy explores the documents telling the story of the emigre agent Jurgen Kuczynski
Fu Bingchang's Diaries
The diaries of Fu Bingchang, Chinese Ambassador to the Soviet Union as the Cold War began.
MI6's Secret Slush Fund
Gordon Corera investigates a secret fund belonging to the MI6 chief in the 1950s.
Scotland's Lord Haw Haw
Jo Fox discovers the transcripts of a Nazi secret radio station broadcasting to Scotland.
The Gibraltar Diary of Squadron Leader Mallory
A document in French leads Nick Rankin to the exploits of an SOE operative in Gibraltar.