George Patterson writes:

You could well be right. I have no idea how much electricity can be produced
by a reactor in say a Ohio class sub. But what ever is done it needs to be
the same few designs used everywhere.

Not a good idea. The Navy uses weapons grade fissionables in its reactors. This
lets it keep the reactors nice and compact and reduces the need for the military
to buy multiple types of material. Commercial power plants use material that is
approximately 4% as pure as weapons grade. It's a lot safer.

Sheesh...you guys want everything - small size, tamper resistance, safety...
http://www.llnl.gov/str/JulAug04/Smith.html

--kyler