Forget security (which worries me less), the legalities of this are notoriously tricky (especially if the ship might ever leave the waters of one nation), and the economics are even worse.
I wouldn’t touch civil maritime nuclear with a barge pole, and if I did, the clear win is decarbonizing big cargo ships.
I wouldn’t touch civil maritime nuclear with a barge pole, and if I did, the clear win is decarbonizing big cargo ships.