Dr. Brian Sadler, US Army Research Laboratory (image) U.S. Army Research Laboratory Share Print E-Mail Caption Dr. Brian Sadler, ARL senior scientist, teamed with researchers at the University of Michigan on a study inspired, in part, by the popular game "20 Questions." Their work appears in the February 2018 issue of the IEEE Transactions on Information Theory. Credit US Army Photo 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.