I just made this the "Thread of the Day" on the front page.
I knew Dave would come in to give us his expert advice on this, and I am really glad he did.
The truth is that this topic comes up a LOT when in the company of cruise line executives. I have seen Micky Arison roll his eyes and say "No, we are not think about any nuclear cruise ships........."
I would think that even if they could get the cost down the insurance and the cost of security to protect the vessel from people who want that super enriched fuel would be astronomical.
Basically - you need a crew of people who have signed contracts saying they will not sue if they die in the line of duty, and they are armed and willing to fight off invaders who may attack. Not too many Romanian waiters or Indonesian room stewards fall into that category, I'm guessing.