Now why on earth would I want to help come up with better justifications for people who want to spy on me, just because their current justification - fear of te

Now why on earth would I want to help come up with better justifications for people who want to spy on me, just because their current justification - fear of terrorism - is irrational? This seems like really screwy logic. How about we just don't spy on people? Or, if you think it could be used to help people, maybe start from a point of "how can we help people" rather than working backwards from "how can we come up with legitimate uses for mass surveillance".