NATIONAL HARBOR, Md.—At this week’s Navy League Sea-Air-Space exposition (an annual seapower conference and trade show for the Navy, Marines, and Coast Guard) Ars got a chance to board and tour a craft called the Stiletto.

http://arstechnica.com/information-technology/2016/05/ars-climbs-aboard-the-stiletto-dods-stealthy-high-speed-lab-at-sea/