U.S. Army Lt. Shawn Stankus, with Troop 3 of the South Carolina Highway Patrol, reviews an exercise plan with U.S. Soldiers assigned to the 1050th Transportation Battalion, South Carolina National Guard before they hook up and tow highway patrol vehicles Nov. 2, 2013, during Palmetto Lightning in Greenville, S.C. Palmetto Lightning was a joint civilian/South Carolina Army National Guard exercise designed to prepare agencies in dealing with problematic winter weather.