Did the US secretly write a power ballad in order to bring down the Soviet Union? That’s the question behind Wind of Change, a serial documentary that has topped the podcast charts. It’s the work of an investigative journalist called Patrick Radden Keefe who claims to have once received a tip-off, from an intelligence contact, that the song ‘Wind of Change’ — recorded by the hair metallers Scorpions — was actually a CIA campaign to encourage anti-Soviet uprisings.