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Former Cabinet Secretary Sir Jeremy Heywood dies from cancer aged 56
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Twin role of top civil servant and security adviser ‘only temporary’
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I’m so proud to have worked with irreverent, indispensable Sir Jeremy
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Comment: All change in Whitehall as the PM gets her man
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Security experts raise concern over top civil servant’s double role
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Government will axe third runway at Heathrow, claims Cabinet minister
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Heywood accused of 'muzzling' Cabinet ministers over airport expansion
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