The CDC is not a criminal justice authority but it is a public health authority. As such could the CDC require those who treat a highly contagious patient to install a metadata virus like program on their smart phones for tracking purposes. This program would not only track the movements of the health care worker but also identify and record all smart phones (phone number, mac address, social media alias) in their vicinity for more than say 15 minutes. Iff the health care worker becomes infected with the worrisome disease then the CDC only can gather this information from the smart phone.
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