I hate to break it to you but if the government want to see that titty pic if it's on either of your phones or any other device they can and likely have.

If we work off the assumption that signal is secure then not without a court order where I live.

Not quite the same in China.

Edit: Awwww. The mods are removing my posts now. Bless their fragile hearts.

Since that's happening I'm out now. It's been an interesting discussion though I fundamentally disagree that surveillance there is the same as everywhere else. I've made my points. Catch you again o/