Exactly. Any backdoor comes with the possibility of use by other parties - hackers, foreign governments, etc. Which is why they are always unacceptable, even if

Exactly. Any backdoor comes with the possibility of use by other parties - hackers, foreign governments, etc. Which is why they are always unacceptable, even if you trust the US government (or whoever is asking for it), including everyone who does or ever will work for them (which is an absurd risk).