No I don't. There I grant the opposition their belief as a stipulation for the purpose of making a more salient point: terrorism is not so destructive as people

No I don't. There I grant the opposition their belief as a stipulation for the purpose of making a more salient point: terrorism is not so destructive as people tend to think, and regulating the flow of information is more destructive than people tend to think. Thus we avoid the challenge of quantifying mass surveillance's efficacy in reducing terrorism.