Airman 1st Class Delvin Darien, 436th Aerospace Medicine Squadron Public Health Flight Technician, runs a piece of cloth along a grassy area at the Eagle's Rest Picnic Area on Dover Air Force Base, Del., June 30, 2010. Darien uses this method of tick-hunting to trap the critter to test for lyme disease. (U.S. Air Force photo by Roland Balik/Released)