Whittaker, who is head of the Signal encrypted messaging service company, ended the article with a call for tech to be “an infrastructure for . . . honesty in the face of surveillance”.

I enjoyed your description of the ingredients needed for a vegetarian chilli had the Americas never been “discovered” (“Departments: Reports from lesser known FT bureaux”, Spectrum, Life & Arts, ...

It’s a long time since I’ve read such a depressing piece in the FT as Eric Schmidt’s column “War in the age of AI demands new weaponry” ( Opinion, FT Weekend, September 21).

Architects — keep the kitchen open plan. That’s my plea after reading Bridget Goldberg’s piece on home design trends (“Closing the door on the open-plan kitchen”, Interiors, House & Home, September 7) ...

As someone who has been interested in fashion since the 1970s, and aware of the sadly dull level of fashion journalism, I was enormously cheered by Kati Chitrakorn’s crystal-clear, expertly ...

Regarding Edwin Heathcote’s Weekend Essay on Stevenage and England’s postwar policy of building new towns (“My kind of towns”, Life & Arts, September 28), I grew up in Hitchin, around seven or so ...

From Mala Tu, Calne, Wiltshire, UK ...