The FBI want to have a giant warehouse that houses a copy of every house key but we don't need to worry because no one will ever manage to break in to the warehouse.
And everyone with legitimate access to the warehouse will be 100% trustworthy no matter what for the entire span of time they are granted access, and nobody without legitimate access will ever be allowed in, even someone like a co-worker of someone with access, and even under the full supervision of someone with legitimate access.
An even stronger guarantee: That the definition of trustworthy and "good guy" are unchanging, and even in a dystopian future where a rogue actor is in control of government, those keys are safe because they understand the morality of the people who created them.
I'd say something to invoke Godwin's law, but it seems pretty clear that genocidal governments that sweep into power love having access to copious amounts of detailed records.
It's worse than that. They want to ship those keys to their agents, only they'd arrive instantly and the only authentication is probably a password (their kid's name and birthday) with no human intervention.
I hate how we always have to tiptoe around saying that the primary threat would be a non-government actor breaking into the warehouse. I'm much more worried about the FBI itself having the keys.
