So for example if a Chinese citizen is arrested in Beijing by the Chinese Police for protesting in Tienanmen square, nobody would seriously claim that the US Constitution protects their speech. - So that covers the case where there is no protection from the US Constitution because the US doesn't have jurisdiction there.
How about an example where a Bolivian Citizen starts a clinic in Bolivia and then shares all of their patient's data with anyone who wants it within the borders of Bolivia. That is a clear breach of HIPAA rules but again because the US does not have jurisdiction, then nobody would seriously claim that the US has anything to say about this situation.
Lastly, assume the case where a Norwegian Citizen sitting in Oslo accesses bank accounts of US citizens and transfers money to his account that is in Switzerland without their consent. What crimes is this person committing and who has jurisdiction to enforce them?
That is unclear, but I think it comes down to how reciprocal non-US countries are when it comes to what laws should be enforced by one country and the citizens of another.
I would say it's more about whether you're willing to apply it consistently or not.
But I believe the US executive branch has not ascribed to that legal philosophy since at least George W. Bush's presidency.
In Assange's case though I don't see how the First Amendment will help here, as the charge is "Conspiracy to commit Computer Intrusion." I don't think the district court is making a case about whether Assange has the right to publish data freely.
Not everybody believes in rights that are not granted, so I think the view that these rights only applied to citizens was always around, but yes, 9/11 did provide added motivation to deny rights to non-citizens.
Note, the distinction here: Someone who is residing outside of the US.
"Assange does not enjoy First Amendment protections because he is not a US citizen and because the amendment allegedly does not protect speech made outside the United States"
Julian Assange is an Australian Citizen who was residing in the United Kingdom and was not being held by agents of the US Government. It's unclear under what precedent he would enjoy protections under the US Constitution.