While others talk of building walls, San Francisco artist Ana Teresa Fernández is working to erase them. She's done several installations combining visual with performance art at various points along the U.S.-Mexico border. Most recently, she coordinated painting at three different sites, using live streaming video to assure that those who couldn't make the trek to the border would still feel a part of the process. Each time, Fernández buys blue paint matching the particular sky overhead, then invites others to join her in painting blue the prison-like bars comprising the border fence. From a distance, it seems the border has been erased, giving rise to new perspectives on what might be possible without its looming presence.