A quiet terrorist victory, one which has completely escaped the notice of the mainstream press, is affecting your life. It has significance in both practical and symbolic terms. In the short run there is little we can do about it. But in the long run the factors propelling the terrorists' triumph contain the seeds of their defeat. Do these names mean anything to you? Stephen LaGuardia, 62, and Philip Coplen, 53, Americans; Michael Hardy, 44, and Michael McGillen, 52, Britons; Anthony Mason, 57, Australian. You might have a vague memory of five Western engineers killed last May in Saudi Arabia....