Call in Anish Kapoor for an HS2 monument | Brief letters

What to do on HS2 | Women who start war | Tory leadership race | The comfort of Corbyn | A Labour shakeup The answer to the question of what to do on HS2 (Nils Pratley on finance, 7 October) depends on the opportunity cost. Everything that can be done is affordable, but if the Treasury insists that the price of more for HS2 is child poverty, cold pensioners, unbuilt hospitals and more obstacles to compensation for victims of injustice (Chagos, contaminated blood, post office, Grenfell etc) then