1. a court order that a dating service saves off all chats and messages between people connecting on the service (instead of just saving off say the chats from a suspected abuser)
2. saving all text messages going through a cell phone company
3. how about saving all google docs? Probably billions of these a day are being created.
4. And how has the govt not tried to put out a legal request that signal add backdoors and save all text messages (because there will no doubt be nefarious users like our own secretary of defense). I think it would take a very significant reason to succeed against a private organization like signal.
The power and reach of this makes me wonder if the US govt already has been doing this to normal commercial services (outside of phone calls and texting). I recall reading back in the day they were "tapping" / legally accessing through some security laws phone company trunks. And then we learned about tapping google communications from Edward Snowden.