Your editorial (Killer robots can’t be confined to science fiction, 30 August) states “no nuclear power has ever given up their capacity to launch a nuclear attack”. In the late 1980s, the South African government dismantled all of its nuclear weapons, the first nation in the world to voluntarily give up its nuclear deterrent.

Tom Barnard

Little Dunkeld, Perthshire

• Have we forgotten the 13 unarmed British citizens shot by paratroopers in Derry (Letters, 1 September)? I reckon 30 January 1972 was the last time protesters were massacred on British soil (however dubious Britain’s claim to that piece of it).

Earl O’Keeffe

Liverpool

• Positive news that Disneyland Paris has changed its mind about letting a small boy dress up as Elsa from the film Frozen (Apology for boy barred from princess party, 31 August), but its statement that “Diversity is near and dear to our hearts” sounds slightly absurd, rather as if the three-year-old must already be a tiny member of the LGBTQ community. A bit previous I’d say. For now let Noah just be Noah, dressed as whoever he likes when he goes to a party. Good on him.

Louise Summers

Oxford

• I am sure we are all grateful to Lisa Paglin and Marianna Brilla for setting out the history of the great operatic traditions (Letters, 31 August). I am sure many of us would like to know into which school Britain’s best known tenor fits. I mean of course Gio Compario.

Ruth Harris

Chippenham Wiltshire

• Personally, I can’t wait for Christmas (Letters, 31 August). At the pub last week I requested apple crumble but with custard not ice-cream. Word came back from the kitchen: “Chef says we only do custard at Christmas.”

Colin Richardson

London

• Leicester Racecourse, on 1 June this year, displayed a large poster on the roadside advising people to book their tables for Christmas dinners.

Bill Shelton

Leicester

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