This is getting pushed in the EU too, the crucial thing to understand about where the road is headed: the goal is the inverse of who does the illicit content scanning. The idea is the government gives a list of illegal activity/speech to the platforms (such as anti-ICE activism or speaking in support of Palestinians) and then the platforms scan (presumably with LLMs) all public and private messages, deletes them and forwards them to federal and local law enforcement of the user. This is why E2E is under attack everywhere, because it makes that impossible.