“Over the last year alone, they have backed more than 20 potentially lethal attacks on U.K. soil,” he said.In March, four men were arrested on suspicion of conducting surveillance of locations and individuals linked to the Jewish community in London to assist Iran. Two of the men were later charged with “engaging in conduct that is likely to assist a foreign intelligence service” between July and August last year.The new powers regarding state threats build on a broader government effort to strengthen protections for Jewish communities in the U.K.“Jewish communities will see a major boost in protection, backed by more than...