Five years ago today four suicide bombers – three home-grown Pakistani Muslims and another Muslim born in Jamaica – blew up three Tube trains and a bus in central London, killing 52 people (plus the terrorists) and injuring another 700. It was the worst terrorist atrocity in the history of London. It was accompanied by great courage, but also by hysteria. “London can take it,” they said, invoking the “dark days” of the Blitz. In truth, not everyone in London could take it. On the day after the bombing hundreds of thousands of Londoners stayed at home rather than risk travelling by Tube.