When London was hit by suicide bombers in July 2005, the dirty little secret was finally out. Great Britain had been the European hub of Islamist extremism for more than a decade. Under the noses of British intelligence, a network of terrorists and their sympathizers had used Britain to plot, finance, recruit and train for atrocities in the United States and around the world. The scale of this activity was so large that exasperated European security agencies dubbed Britain's capital city Londonistan.