Negative. They can Disturb a Human Beings Personal privacy. I hope if they put camera in the floor that the have sensors and things in that nature. They actually do have cameras in the street in DC. Since their street lights aren't like ours and they aren't connected. but since they aren't the cameras are in the ground to check for speeding. and running red lights etc.
Positive. I guess it would do good things for crimes and bad people.