Most likely in large cities in the US. Could easily be concealed as a radio antenna or a ground level transformer. Also they could be placed in Skytrain stations or sports stadiums where people are stationary for large periods of time and alot of traffic. You need an emitter and receiver for MRI map correctly
The real question is not probable but profitable, there is alot of money in government contracts to map the populations though process. Or corporations working on AI?
Or companies that want to selectively market
Most likely in large cities in the US. Could easily be concealed as a radio antenna or a ground level transformer. Also they could be placed in Skytrain stations or sports stadiums where people are stationary for large periods of time and alot of traffic. You need an emitter and receiver for MRI map correctly
You need a lot more than that. Possible, not probable.
The real question is not probable but profitable, there is alot of money in government contracts to map the populations though process. Or corporations working on AI? Or companies that want to selectively market
You're asking a lot of questions but giving me nothing.