Scientist and Soldier (image) U.S. Army Research Laboratory Share Print E-Mail Caption Army researcher Dan Baechle (right) briefs Sgt. Michael Zamora on how to use the Third Arm exoskeleton device from the Army Research Laboratory at Aberdeen Proving Ground, Maryland. Credit (US Army photo by Conrad Johnson) Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.