[masswerk]

Mind that freedom of speech (US) and freedom of opinion (Europe) are different concepts. E.g., while you may harbour a certain opinion in the EU, expressing this in a way generally considered harmful (concept: speech may establish an act) may get you in trouble. On the other hand, crossing the US border may trigger an attempt to infer your opinion from extracted public or semi-public expressions, which may get you in even more serious trouble, you may be even considered a viable target based on such inferences (and there is no clear law for this, there isn't even due process.) Both concepts come with their own freedoms, implications and caveats.