This is obviously very troubling, but I do wonder what the actual technical mechanisms are for "turning over your social media." Do you ....

- Give them your user names and (when possible) the government subpoenas the companies?

- Give them your user names and they just see what's publicly available?

- Require you to give them your passwords?

- Hook your phone up to some device that steals data on the device?

- Something else?

Does anyone know? I'm also interested in the case where you legitimately don't have social media. Does anyone know what happens then? I understand that can look suspicious, but what if you had to travel to the US unexpectedly? You can't go back in time and build 5 years of social media so you don't look suspicious. (on principle, I wouldn't do this anyway.)

[edit]

And what if your social media is Chinese and private? They just can't do anything then.