Reply to "Were regular trainmen issued sidearms as standard equipment by the Railroads in the early days?"

I knew a guy when I was in the Navy that used to be a welder that worked in the yards repairing freight cars.  He claimed that some high value cargo cars (like electronics) had armed guards inside of the freight cars stationed in armored porta potties with firing ports.  This was back in the 90s.  I don't know if this is true or not, but thought I would share.