It's all about who MAY be in power sometime in the future. Sure the government in control at the time used that data for good, but what if Palpatine incarnate is in power next?
All data you allow the government to collect about you can and will be used against you in a court of law... Or a possible Drone strike, now that the NDAA is in effect. :thumbsup:
Well you see I trust in democracy and the current electoral system. And the benefits of city centre protection via CCTV currently outweigh the possibility that someone might misuse the close to useless data found on them.