AEC historical photo (IMAGE) PNAS Nexus Caption A U.S. Atomic Energy Commission photograph from July 26, 1957 showing an individual using a Geiger counter to examine a green sea turtle (Chelonia mydas) for potential radioactivity in the Republic of the Marshall Islands, likely from Enewetak Atoll. Credit Courtesy of the National Archives, photo no. 28828530 (326-16-042) Usage Restrictions No restrictions. License Public Domain 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.