What is a bat bomb? Why would you cover a fox in radioactive paint? And who are the masterminds behind the Office of Strategic Services, the precursor to the CIA?

In this episode, Don is joined by John Lisle to discuss the creations of the Research and Development branch at the Office of Strategic Services.

John is the author of 'The Dirty Tricks Department: Stanley Lovell, the OSS, and the Masterminds of World War II Secret Warfare' and a lecturer at the University of Texas, specialising in the history of science.

Produced by Sophie Gee. Edited by Siobhan Dale. Senior Producer was Charlotte Long.

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