One A. Sock letter, an unflattering take in 1979 on the National Organization for Women, brought a sharp rebuttal letter.

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When Wood and co-presenters Adam Ferrara and Tanner Foust got a letter from the sharp-tongued Clarkson - who has said American focus groups "just don't get" the programme - they were understandably nervous.

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This is the full and unabridged letter Stuart Hazell, on trial for murdering the schoolgirl Tia Sharp, sent to his father from HMP Belmarsh.

BBC: Tia Sharp murder trial: full Stuart Hazell letter