Oklahoma Highway Patrol and more than 300 Vietnam Veterans and active-duty military motorcyclists escort the American Veterans Traveling Tribute Vietnam Wall along U.S. 412 Friday, Nov. 30, 2012 to Enid, Okla. (AP Photo/Enid News and Eagle, Bonnie Vculek)

OKLAHOMA HIGHWAY PATROLVIETNAM VETERANSAMERICAN VETERANS TRAVELING TRIBUTE VIETNAM WALLEnidOkla.