Crystal Clear (IMAGE) DOE/Sandia National Laboratories Caption Sandia National Laboratories researchers Melissa Mills, left, and Kristopher Kuhlman peer through a salt sample from their Waste Isolation Pilot Plant experimental site. Credit Photo by Randy Montoya/Sandia National Laboratories Usage Restrictions With credit License Original content 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.