Should we distrust our own ability to reason? Why is debunking conspiracy theories such a risky business? And is David Icke a force for good?

Rob Brotherton is an academic psychologist and theorist of conspiracy theories. His new book is Suspicious Minds: Why We Believe Conspiracy Theories. He joins us down the line from New York City.

With Nicola Davis in the studio is Chris French, professor of psychology at Goldsmiths, University of London, where he heads the Anomalistic Psychology Research Unit.

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