United nations

The Indian Prime Minister has twigged something that President Trump has yet to understand. On Monday, celebrated as World Radio Day, Narendra Modi tweeted his congratulations to ‘all radio lovers and those who work for the radio industry and keep the medium active and vibrant’. Modi uses radio to reach out to those in his country who live in its most remote and inaccessible corners, giving a monthly address to the nation known as ‘Mann Ki Baat’ (or ‘To mind’). He says it’s his way of ‘sharing his thoughts’ with his citizens, and a useful way of extending the tentacles of government into those areas where television sets are uncommon, let alone computer screens or smartphones.

Modi has understood the power of radio to reach those parts that even Twitter can’t access, and the way that radio is in many ways more powerful than online communication — because of the way it gets inside your mind.