U.S. Army Maj. Gen. David L. Mann, right, commander of U.S. Army Recruiting Command, holds the hand of Army Capt. Ivan Castro, a blind runner, while they approach the finish line at the 2011 Army Ten Miler in Washington, D.C. Oct. 9, 2011. Castro continues to serves in active duty despite losing his eyesight. He is the only blind officer serving in the U. S. Army Special Forces. (U.S. Army photo by Staff Sgt. Teddy Wade/Released).