If you use Google Maps from a smartphone, you're giving data to the NSA.

To some extent this is because Google designed it to track you. This includes the fact that it asks you which address you're interested in. I used to use Google Maps, back when it worked without running nonfree Javascript code, but I never entered an address; instead I scrolled around in the area I was interested in and found the address for myself.

I've pointed out for years that the system could do the same job while respecting privacy more by searching the map data in your own computer for the addresses you're interested in.