The Manchester atrocity lifts the rock of British foreign policy to reveal its Faustian alliance with extreme Islam, especially the sect known as Wahhabism or Salafism, whose principal custodian and banker is the oil kingdom of Saudi Arabia, Britain's biggest weapons customer.
The latest terrorist attack in England, which killed or injured dozens of teenagers, raises a question for every British, French and American parent: Is continued interventionism in the Middle East and Afghanistan worth it?