London is a complex delight of cultures and crime, of poverty and wealth, of gang warfare and suburban bliss, of traffic jams and serene parks and gardens. People of all races and religions flock to London always have, always will. Some have come more peacefully than others. When discussing attacks on London, the idea that comes into your head is of some foreign power invading the city or, in more modern times, attacking from the air. The reality is that the majority of the attacks on the capital have come not from a foreign enemy but from members of the…