U.S. Air Force Col. Barry Cornish, 99th Air Base Wing commander, talks with Duck Dynasty star, Si Robertson, prior to his book signing appearance at the Base Exchange Nov. 12, 2013, at Nellis Air Force Base, Nev. Uncle Si, as he is commonly known, met with fans and autographed copies of his book, “Si-cology 1: Tales and Wisdom from Duck Dynasty’s Favorite Uncle” at the Exchange. (U.S. Air Force photo by Master Sgt. Jason W. Edwards)