Pertinent to this, I'll ask you if the Nautilus's running afoul of the Scotia, which caused such a great uproar, was the result of an accidental encounter?
But the plan ran afoul of America, which feared France was trying to undermine NATO, and was then stalled by Franco-British spats over the Iraq war in 2003.
So, quickly you run afoul of a whole lot of rules, and regulations, and international treaties of the non-proliferation of weapons of mass destruction and whatnot.