You or Jay asked me the same question, except in reverse, of how the war made us more at risk for terrorism. They used it as justification for starting the attack. The burden of proof is on the side that wants to spend the money and lives. Imagine if a corporation spent that much money and lost some of their best employees on a new project designed to make things easier. When rating its effectiveness, the question to ask is “Has it made things easier?” “It hasn’t made things any harder” is not an acceptable answer.