There are. I have worked on some of them.
In a real conflict, that sub would have been splatted about 5 minutes after hostilities ensued.
Despite Obama, our carriers are VERY hard to attack, let alone sink.
You can find most of the information about this technology online if you know where to look, so I am not disclosing any secrets.
That is good to know, I was beginning to wonder if this exercise was the result of king O’s homo push in the field commands.