Last I heard the cost of repairing the damage was half of what a complete new sub would have cost.
I think its the right thing, scrap it and start all over, a sub needs steel that has a known strength, fire damages steel, especially HY90 or stronger.
And I agree they should hang the guy or have him executed by a firing squad. A half a billion dollars of OUR money wasted by a guy that just wanted to get off work early, thats despicable in its lowest form.
Um... the manufacturer gets paid by the US Treasury upon receipt of the good. This is an issue between the shipyard and the contractor.