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"University of Washington researchers planned to have preschool teachers wear cameras that would record everything they saw from a first-person perspective, including the children they were teaching, then use that footage to develop AI models. Crucially, the program was presented as opt-out, rather than opt-in, meaning that parents had to take steps to prevent recordings of their children being processed by AI."
https://www.404media.co/researchers-wanted-preschool-teachers-to-wear-cameras-to-train-ai/