What a great idea!
Let the Muslim Jihadis work on our ships.
They can put locaters in so that homing missiles/bombs/torpedoes can track them.
They could see that some parts use substandard materials, etc.
They can possibly booby-trap it!
Great move.
Well, if we are building our ships with substandard materials I think we have more to worry about than any of the other nonsense you posted.
How many of our navel vessels, that have been worked on, in the past nine years, have exploded or fallen apart, or whatever else you are so worried about? The answer, is NONE!