Whether or not the gov uses these is irrelevant. With your logic, how about I put a camera on your house and snap photos of everybody that goes in an out of the door? Is that OK since the government could already do that if they wanted?

Then what if I take these images and post them online with your name and address? It's all public information and data captured outside of your house. It should then be fine for me to take this public data and sell it to an aggregator, say Facebook and Amazon, right?

Where do you draw the line?