I completely agree, my only point was that a blimp really can't add much to existing surveillance measures that essentially capture everything. A blimp might he

I completely agree, my only point was that a blimp really can't add much to existing surveillance measures that essentially capture everything. A blimp might help you target extremely paranoid people, that's about it. Even then, having actual human tails would be more effective, especially in NYC. For foreign operations blimps are amazing though, since a place like Afghanistan doesn't necessarily have modern infrastructure or any shortage of people trying to hide.