A map of all U.S. Customs and Border Protection (CBP) surveillance towers and automated license plate readers (ALPRs), as well as the locations of the thirty photographs included in this exhibition. Click each icon for more information.

The locations of surveillance towers and ALPRs used at checkpoints and ports of entry come from a dataset created by the Electronic Frontier Foundation (EFF), with contributions by Dugan Meyer and Colter Thomas. That dataset also includes other surveillance infrastructure types, and is available—along with a link to the EFF's map—here: U.S.-Mexico Border Surveillance Data. The locations of stand-alone ALPRs come from a dataset created by Dugan Meyer, with contributions by Colter Thomas. Both datasets are licensed under Creative Commons 3.0 Attribution licenses.