[outworlder]

> If your threat model includes the nation state where you physical infrastructure is, you're hosed.

True. But even if you trust your nation state 100%, having a backdoor means you now have to worry about it falling into the wrong hands.

[jacquesm]

Even if you trust your nation state 100% having a backdoor means it has already fallen into the wrong hands. That's because 'nation state' is not synonymous with 'people running the nation state'.