Police can get warrants for people because they were near where a crime occurred. This is fucking nuts. And of course Google doesn't take the position of protecting your data because you're a not a Google customer, you're a Google product.
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You think that's bad? They can use your WiFi/router without a warrant to make a blueprint of the inside of your house to figure out how many people & where the rooms are in the house. Look it up ever heard of WiFi/Bluetooth sonar? Invented from the soliton radar which was originally based on submarine sonar radars.