Making data publicly accessible does not grant users of it carte blanche to use it however they wish. The data may be copyrighted: Viewing it does not grant the viewer rights to republish it or claim it as their own work. An image may contain a likeness: Viewing it does not grant the viewer rights to claim endorsement by that individual, or to use their likeness in ways of which the individual does not approve.
Beyond copyright and likeness rights, a likeness contains biometric information. Having access to that likeness, at least by the laws of the State of Illinois, does not grant the user rights to biometrics derived from that image.