It would be great if we could have AI that wasn't trying to emulate a human. When it expresses emotion, we should see that as a bug that needs to be fixed.
Even if they could practically restrict access to US citizens only, I would expect them not to - it would be hard to regain that once lost and they need a global market for growth.
I've been waiting for someone to say this. An agent will generally produce far more code than technically necessary for the task. It's a kind of over engineering which makes it increasingly harder to wrap your head around the codebase.
The issue is provenance. We need cameras and phones to digitally sign photos so we can easily verify an unadulterated image.
You also want to be able chain signing so that for example a news reporter could take a photo, then the news outlet could attest its authenticity by adding their signature on top.
Same principle could be applied to video and text.