Testing PLOT-cryo (1 of 2) (image) National Institute of Standards and Technology (NIST) Share Print E-Mail Caption NIST chemist Megan Harries tests whether a portable, high-tech sniffing device called a PLOT-cryo system can be used to screen shipping containers for dangerous airborne chemicals at ports of entry. For this test, which was performed at the NIST campus in Boulder, Colo., Harries used an old US Army communications bunker as a stand-in for a shipping container. Credit Image courtesy of Megan Harries 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.