Here is a video including clips from the three keynote speakers during the Fourth Annual Updating of the Vietnam Memorial Wall at the National Vietnam War Museum this morning. The speakers are U.S. Army Brig. Gen. (Ret.) Nate Vail, U.S. Marine Corp. Col. (Ret.) Mant Hawkins and Commander of NAS-JRB Fort Worth U.S. Navy Capt. Robert A. Bennett.