In the early hours of yesterday morning, Essex police were called to a parked lorry container. Inside were the bodies of 39 people, one of them a teenager. Their identities and nationalities were initially unknown, but we have since learned that they are Chinese nationals. The driver, a young man from Northern Ireland, has been arrested. Normally, faced with such a body count and the appearance of mass murder, politicians and commentators would be circumspect, perhaps uttering routine expressions of horror and pledging their support to a police investigation. But they would not have already worked out who was to blame. Still less would they announce their theories in the House of Commons.

