That would be embarrassing for everyone…
Sign of the times.
The difference is asking, and doing. If you decide to go it outside the US, you aren’t concerned about feelings with cracking code.
This is both extreme and difficult. We're getting into the realm of Iran keeping Tomcats going.
And with the F-35, it isn't just aircraft code. Everybody else would have to reverse engineer all the ground side software too. Like ALIS/ODIN.
It's really not worthwhile. This is you're really seeing Europe starting to move more decisively and becoming strict about keeping the spending in Europe. Today's rumour is that Macron is even pushing to exclude the UK from pooled EU funding. They need to especially keep control of intellectual property.
The US should also be worried. What happens to unit costs of the aircraft or even the costs of each development block if the F-35 loses 20% of projected sales?