170619-N-PO203-050 NORFOLK (June 19, 2017) Sailors assigned to the guided-missile destroyer USS Stout (DDG 55) send a message to the guided-missile cruiser USS Monterey (CG 61) using a Flashing Light to Text Converter (FLTC). The FLTC both sends and receives optical lamp communications via an intuitive chat session on a tablet computer. (U.S. Navy photo by John F. Williams/Released)