In assessing the deserves of driverless taxis (Driverless taxis from Waymo will likely be on London’s roads subsequent yr, US agency proclaims, 15 October), passengers ought to think about the cautions introduced in Christian Wolmar’s ebook Driverless Automobiles: On a Street to Nowhere. Adherence to Isaac Asimov’s first regulation of robotics (“A robotic might not injure a human being”) requires the taxi to cease if an individual steps in entrance of it. Freeway theft or worse could also be facilitated.
Prof Clive Coen
King’s Faculty London

Your article (Parliamentary workers of color earn £2,000 lower than white colleagues, examine suggests, 12 October) says that disabled staff earn £646 much less a yr “than able-bodied colleagues”. Disabilities are available in many varieties, not all bodily. A few of us are in a position‑bodied and disabled.
Sara L Uckelman
Durham

Adrian Chiles’s column on the Stourbridge Shuttle (16 October) doesn’t point out its most vital function: George the station cat, identified to his social media followers as a supply of knowledge, a psychological well being advocate and a photogenic delight. He additionally helps to boost cash for a lot of causes.
Anne Cowper
Bishopston, Swansea

I’m in settlement with Adrian Chiles’s mum (I went to Marina Abramović’s erotic, specific new artwork present – and there was an terrible lot to absorb, 15 October).
Helen Evans
Ruthin, Denbighshire

Has the Guardian ever revealed a letter by a extra appropriately named correspondent than Frank Roper on climbing (13 October)?
Gary McGregor
Garvald, East Lothian