ANNAPOLIS, MD -- The Navy may replace its hospital ship fleet with autonomous systems and is asking industry for ideas on how to safely recover shipwrecked sailors, according to a service official. Patrick Mason, warfighter performance department head at the Office of Naval Research, said here Oct. 25 during an expeditionary warfare conference the Navy will not replace its aging Comfort (T-AH-20) and Mercy (T-AH-19) hospital ships because the vessels are unable to operate in the Pacific. The hospital ship...