Tomas van Houtryve Drone Essay Longest Ever Published by Harper’s | PDNPulse   Tomas van Houtryve takes on the proliferation of drones as weapons and as tools of surveillance in the April issue of Harper’s Magazine, in a photo essay titled “Blue Sky Days.” At 16 pages, it’s the largest picture story ever published by … Continue reading Tomas van Houtryve Drone Essay Longest Ever Published by Harper’s