No 10 insists 'no hard border in Ireland'

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The government has insisted its policy on the Irish border after Brexit has not changed, after a leaked letter from Boris Johnson failed to rule out a hard border. We look at the political significance of the leak and speak to the DUP. A German court rules that cities can ban older models of diesel cars, to try to improve air quality. We ask what this might mean for diesel drivers and clean air campaigners in the UK. And a former top mandarin says leaving the single market and the customs union is like giving up a slap up dinner for a packet of crisps -- but is that such a bad deal? (Picture: Banksy Brexit artwork of workman chipping away at EU flag in Dover Credit: PA).