The Pentagon's advanced research arm recently announced a new three-year program focused on improving medium unmanned surface vessels' ability to move in formation through rough waters. The Defense Advanced Research Projects Agency on Monday published a broad agency announcement for a "Sea Trains" program, which seeks ways to "overcome the range limitations inherent for [MUSVs] by exploiting wave-making resistance reductions," according to the document. In a summary explaining the program's impetus, DARPA references the Navy and Marine Corps' push into...