HAIRPIN CONSTRUCTION Under the shadow of a large excavator, U.S. Air Force Staff Sgt. Mark Ellis and Master Sgt. Chris Blackwell discuss plans to smooth out this dangerous stretch of hairpin turns that hampers U.S. border patrol officers in their efforts to secure the border near Campo, Calif., May 1, 2008, The two are assigned to the 201st RED HORSE Squadron. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 034483-K-TPM33-028.jpg Photo Gallery