Algorithmic video surveillance has transformed the "classic" cameras on the streets of our cities. This technology, sold by its promoters as a "decision aid", is actually an algorithmic layer added to the cameras to identify and analyze the allegedly "suspicious" behaviors or movements that the police want to track. Its deployment is carried out in complete opacity and without any public debate, in probably more than a hundred cities today, leaving the field free for the industrialists to promote and perfect their product of which we are the guinea pigs.