Insulate Britain has staged sit-ins on the M25 and on the roads to Heathrow and the Port of Dover. The protesters are willing to risk going to prison for the cause. Who are they? And will they succeed?This podcast was brought to you thanks to the support of readers of The Times and The Sunday Times. Subscribe today and get one month free at: thetimes.co.uk/storiesofourtimes.Guest: Tom Ball, reporter for The Times.Host: Calum Macdonald.Clips: BBC, ITV, ITN, LBC, Insulate Britain. See acast.com/privacy for privacy and opt-out information.