Dr. Lisa Hensley, a civilian micro-biologist at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick in Frederick, Md, zips into her blue Chemtoriun suit, or Bio-Safety Level 4 suit, Thursday, March 6, 2008, in Frederick, Md., inside "The Slammer", a containment unit set up to quarantine lab workers who may have become infected with a deadly infectious disease. (AP Photo/Timothy Jacobsen)