Rear Adm. Matthew Klunder, chief of naval research, talks with Dr. Clifford Bedford, Office of Naval Research's energy conversion program officer, Capt. Michael Smith, right, commanding officer Naval Surface Warfare Center Dahlgren Division, and Jeb Brough, left, NSWC reactive materials lead, following an ONR High-Density Reactive Material demonstration held at NSWC Dahlgren's Pumpkin Neck test facility. HDRM has the strength of common aluminum alloys yet the density of mild steel, making it an ideal replacement for steel components in existing weapon systems. (U.S. Navy photo by John F. Williams)