TECH FILE Vehicles & PropulsionLRAUVArctic Oil-Spill-Mapping Robot Put to the TestAs commercial shipping and energy activities picks up in the Arctic region, the prospect of accidental oil spills in this pristine environment remain a con-cern. In response, the U.S. Department of Homeland Security (DHS) is taking the lead – through the U.S. Coast Guard – to develop a subsea robotic system to map and report on spills. “Because of ice coverage and the tyr-anny of distance, it is dif