Both trace portals, used to screen passengers for traces of explosives, have been installed at Terminal One. The deployments of the Sentinel IIs are part of the TSA’s Phase II pilot program to test and evaluate trace portals and their impact on airport security checkpoints. The Sentinel II is a non-invasive walk-through scanner that operates automatically, passing air gently over the body to release particles that are naturally absorbed by or cling to a person’s clothing or body. These particles are then drawn into the instrument for analysis. Detection of these particles or vapors can indicate that a person is either carrying an explosive device or has come into contact with explosives substances. “We are pleased to participate in the first deployment of two trace portals at a single airport,” said Bill Mawer, Director of Business Development, Smiths Detection. “Together with the TSA we are enhancing security screening and developing new solutions to benefit the flying public.” In addition to McCarran International Airport, the Sentinel II is currently being tested at Baltimore-Washington International Airport, JFK International Airport, and Jacksonville International Airport.