Technical Sgt. Barbara Brooks, 316th Wing Protocol specialist, left, and Mary Cannon, 316 WG Protocol support technician, right, review a tracking system display board while preparing for the departure of the Mexican President from Joint Base Andrews, Md., April 13, 2010. The 316th Wing is leading operations to provide safe, effective and efficient departure services for the invited guests transiting Andrews. (U.S. Air Force photo by Airman 1st Class Melissa V. Brownstein)