That's interesting - is there anything relevant they could do under homomorphic encryption? For example, let's say that the government wants to only flag content with the substring "I am planning an attack" - is there any way to do that while keeping encryption intact?

The government alone couldn’t do it. The system has to be on device, otherwise the key is exposed rendering the whole thing moot.

Alternatively, the service providers like Meta can do it. We trust them with the end to end encryption anyway.

> We trust them with the end to end encryption anyway.

No we don't.

Well, maybe you do not,but the general public does.