The government has announced it will introduce legislation to exonerate the many hundreds of postal workers affected by the Post Office Horizon software scandal. So is the only way to turn the government’s head to an issue to make a TV drama about it? The Guardian’s John Harris speaks to former postal worker Chris Head about the impact it had on him, and columnist Gaby Hinsliff about what this tells us about our creaking institutions. Plus, columnist Rafael Behr joins John to look at the year ahead. Help support our independent journalism at theguardian.com/politicspod