It's the underlying justification at the birth of every surveillance agency from the Soviet Cheka to the German Stasi and beyond.  Don't commit crimes and "you have nothing to worry about."

Of course, this argument requires the public to overlook a simple and universal truth – That which is legal today can be made illegal tomorrow, and the people who make these decisions are often not good people.  With the ability to track and trace the behavior and movements of the citizenry in real time, the temptation to abuse that technology to increase government power is exponential.  That is to say, mass surveillance tends to inspire governments to abuse their authority and treat people like criminals even when they are innocent.

As we witnessed around the world during the pandemic lockdowns, authoritarianism can rear its ugly head without much warning and with incredible speed.  Some western countries (and even a few American states) aggressively sought to make resistance to covid restrictions criminal, to the point that authorities were legislating and even building "camps" designed to lock up covid offenders.  These plans were of course denied by political leaders even as they were putting the pieces in place to implement them.

All of this was done in the name of a virus with a 99.8% survival rate.  What might they do when a legitimate crisis comes along?

We have seen how far our governments are willing to go to go to secure greater power over the populace; they have proven they're not trustworthy enough to handle unilateral oversight. With real-time AI based surveillance in place the dangers are far greater.  Across the country there has been a quiet rollout of a new algorithm driven camera network from a company called Flock Safety.