NATIONAL HARBOR, MD -- Service officials gathered this week at the Navy League's annual Sea-Air-Space conference to chronicle their efforts expediting submarine and surface ship repairs and recapitalizing aging public infrastructure -- presenting a snapshot of measured progress with an uphill battle ahead. A key challenge is that many of the Navy’s platforms were not designed with sustainment in mind, according to Rear Adm. Ken Epps, who leads Naval Supply Systems Command's weapon systems support unit, and appeared on a...