Raymond Randle, environmental health technician, Fort Bliss Environmental Health, connects a battery to a mosquito trap during his daily rounds as part of the mosquito surveillance program at Fort Bliss, Texas, to prevent the spread of West Nile virus, Oct 10. Each week the surveillance team identifies trouble spots on the installation and sets traps to collect mosquitoes. (Photo by U.S. Army Sgt. Jonathan W. Thomas, 16th Mobile Public Affairs Detachment)