[notahacker]

International supply chains are the rule rather than the exception. The 787 pushed the novelty envelope further than it needed to with the amount of composite materials used (it's possible that in time, this will look like a smarter bet as it'll be easier to reengineer if competing with future generations of aircraft where composites are commonplace) which as one of the factors delaying launch, and also had major issues with engines and batteries which were always going to be supplied by third parties.