Keep out! Published Aug. 27, 2002 OPERATION ENDURING FREEDOM (AFPN) -- Staff Sgt. James L. Walters, from the 405th Air Expeditionary Wing's security forces squadron, installs concertina wire on top of a barrier at a forward-deployed location supporting Operation Enduring Freedom. Walters is an Air National Guard member deployed from the 129th Security Forces Squadron at Moffett Field, Calif. (Photo by Staff Sgt. Cheresa D. Clark)