Illinois actually has some of the strongest privacy legislation in the country. I got a $350 check from Facebook for running facial recognition on my photo without permission, and Google owes me a similar amount when it's class action gets approved.

Check out the Illinois BIPA, it's the reason tech companies are trying to get federal privacy legislation that preempts state law.

FWIW, Illinois sometimes does crazy things the other way too. They banned facial recognition altogether, so Nest (and other cameras) can't offer the "familiar faces" feature, like to not alert you when a spouse comes home instead of a stranger.

Facebook also paid me several hundred dollars because they were auto tagging faces for Illinois users.

You haven't seen my comments praising Chicago ?

The friendliest city I've ever lived, amazing public transit and where I met my first real girlfriend.