Cerenkov radiation
Because water is a wonderful shield. I used to sit on the edge of a running university uranium reactor with nothing but about 15 feet or so of water between myself and the core. We would turn the lights down and crank it up into the megawatt range. The core would glow with the most beautiful blue light. (Cerenkov Radiation)
Thank you RA .. I knew somebody with more smarts than me would be able to tell me what was really going on.
I have to trust ya on this one, because it would make me very nervous to live in GA and know a nuke is right out my window in the ocean.
Because it isn't armed .. what kind of danger is there it would explode ..??