Chicago already has a wide-reaching video surveillance network, and this summer, its going to begin keeping track of much more using automated sensors. Through a program called Array of Things, Chicago will begin installing fixtures onto light poles throughout the city that will collect information on light, sound, heat, precipitation, and wind, according to the Chicago Tribune. While its unlikely that this could compromise data any more than a coffee shops Wi-Fi network could, it is possible that basic identifiers could allow law enforcement to track a single persons movements across a city — a potentially powerful ability when tied with Chicagos security cameras. Its said that Chicagos sensors are being set to not collect this type of identifying information, however, which may allay these concerns.