Covering a Vietnam war demo in Grosvenor Square in 1968, as a Guardian reporter, I was dipping in and out of the procession, getting quotes from protesters (The super-rich have done what protesters never could: taken over the US embassy in London, 22 July). Then a man sidled up and asked: “Are you from special branch too?”
Richard Bourne
London
• As a resident of SW19, may I point out that the Wombles live on Wimbledon Common, not in Wimbledon Park (Letters, 23 July).
Caroline Ewans
London
