It's ok to take a picture of the street out of your front window
It's not ok to take a picture of everyone that walks in front of your house, timestamped and on top of that you search their picture on Facebook (supposing you could do that) and keep all that info forever
It's not ok to take a picture of everyone that walks in front of your house, timestamped and on top of that you search their picture on Facebook (supposing you could do that) and keep all that info forever