Francesco Fondi writes "An Italian Italian Company is using RC scale model Submarines to lay fiber through MILANO's sewage system. The RC submarine used is the NETPUNE SB-1 produced by Taiwanese company Thunder Tiger. It costs ca $600 in US hobby shops." Link to Original Source
It appears that PL/I (and its dialects) is, or will be, the most widely
used higher level language for systems programming.
-- J. Sammet