It'd be more accurate to call it a "second source", like when you manufacture military devices you try to have second sources for all your chips. The US govern

It'd be more accurate to call it a "second source", like when you manufacture military devices you try to have second sources for all your chips. The US government needs Boeing to stay in the space business in case Musk throws his toys out of the pram. Given Musk's recent erratic behaviour this seems a sensible thing to do.