Twenty years have passed since four British Islamist extremists boarded trains and a bus in London, carrying with them bombs and a belief that mass murder was a sacred duty. Fifty-two innocent lives were extinguished on 7 July 2005, in what remains the deadliest jihadist terrorist attack on British soil. And yet, two decades on, the official commemoration of that atrocity has been clouded by a stubborn refusal to name what truly happened and why.
