U.S. Army Spc. Anthony Bryant, 688th Rapid Port Opening Element, 597th Transportation Brigade motor vehicle operator, provides a DNA sample at Fort Eustis, Va., Jan. 30, 2015. Since its inception, more than 800,000 individuals have joined the program’s registry, supplying more than 6,000 marrow and stem cell donations. (U.S. Army photo by Loran Doane/Released)