As the U.K. marks the tenth anniversary of the July 7 London bombings, there is a sense that what was a terrible new phenomenon in 2005 has become increasingly prevalent.
Back then, the country was shocked when 52 people died at the hands of four British nationals who had brought what they saw as a religious war on to the streets of London—and were willing to die in the process. In the ten years since, more have taken a similar path, causing anxiety about how long it will be before another attack happens and how these people are to be stopped.