Bulletin PM briefing: Nato’s secret Tube station and Guardiola announces Man City departure

1. Nato turns London Tube into underground HQ to prepare for Russian attack
2. Burnham vows to ‘change Labour’ as Makerfield by-election campaign launched
3. New Ebola strain vaccine could be ready within months, Oxford scientists say
4. Judith Chalmers, host of ITV’s Wish You Were Here...?, dies aged 90
5. Guardiola to leave Man City after 10 years in charge

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