Does it matter if the airframe is stealthy is it is using a massive radar?
Any info on the engine for the A350-2000? It might not be quite as simple as the 'push' on the B777-10X.
How did they miss a descent rate of 10k feet/min? Surely, that is all the info they really needed to identify what was happening?
Transistors were invented long before Sputnik was launched. Anything else you have wrong?
You need to be a serious country to manage programs like this. But the post Cold War US is no longer serious. This is a bipartisan fault too - so there is no 'fix' in sight. Medieval death...