In 1975 US troops airlifted hundreds of people out of Saigon as the Vietnam War ended.
Tom Holland and guests discuss Aethelwold, Edmund and Catholic martyrs.
Barrister Harry Potter on whether we can believe our eyes.
Melvyn Bragg and guests discuss how we can know anything at all.
Melvyn Braggs and guests discuss the history of ideas around love.
How should we love our children? Philosopher Jean-Jacques Rousseau had some great ideas.
What is love? Psychotherapist Mark Vernon looks at Freud's ideas on the Greek god Eros.
Giles Fraser discusses gene theory versus altruism with Tom Stoppard and Armand Leroi.
In 1960, the leading Nazi Adolf Eichmann was abducted in Argentina and smuggled to Israel.
Gordon Corera reveals evidence of a secret deal between a code-machine company and the NSA
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