How can we build up a more truthful picture of the world in the era of fake news, trolls, Trump and Putin? This is the question at the heart of Peter Pomerantsev's new book This is Not Propaganda: Adventures in the War Against Reality.
Pomerantsev is a Soviet-born journalist, author and TV producer who's spent much of his life in Britain after his dissident parents were forced out of the USSR by the KGB.
He's also a Visiting Senior Fellow at the Institute of Global Affairs at the London School of Economics.