Security
London attack
As the seat of Britain’s political power, Westminster should be a fortress. But yesterday’s terror incident – a year to the day after the attack in Brussels – underscores how fragile security is, even in such a high-profile public area. The Houses of Parliament are not in an exclusion zone, though security has progressively tightened throughout Westminster in recent years but the area is surrounded by barricades and a robust police presence. “This happened at the most defended location in the country, with firearms officers at seconds' notice,” says Chris Phillips, former head of the UK’s National Counter Terrorism Security Office. The area, he explains, is well defended against car bombs but that doesn’t offer protection from a vehicle intent on knocking people over on the pavement. “You can never have 100 per cent security but you can limit the number of casualties.”