This film is a two-part technical report on the Edgewood Arsenal Tunnel Operation and three incapacitating chemical agent munitions. The first part of the film explores the Edgewood Arsenal tunnel project which determined how quickly tear gas could penetrate underground tunnels used for storage and evacuation using various deployment techniques. The second part explains three techniques for deploying tear gas, the usefulness of the Multipoint Source cluster, the Handy Andy, and the Power Pack. National Archives and Records Administration - ARC Identifier 2123762 / Local Identifier 175.27 - Project Tunnel - Department of Defense. Department of the Army. U.S. Army Materiel Command. U.S. Army Munitions Command. Edgewood Arsenal. (08/01/1962 - 1971).