This is incorrect. As an example simply reading ISIS content online can be enough to charge you with a terror offence (at least in the UK).

https://www.bbc.com/news/uk-41479620

Edit: Although, I suppose you could define reading ISIS content as an expression of ISIS beliefs, so maybe I'm misunderstanding your point.

Expressing them definitely. I once saw a guy in London with a t-shirt that said "support the pkk", which the UK designated as a terrorist org at the time (maybe still) and so this support was a crime. Still, big difference between something being the law and someone actually getting charged with a crime.

Only because without expression there is not yet a way to prove it

>By sitting in the alcove, and keeping well back, Winston was able to remain outside the range of the telescreen, so far as sight went. He could be heard, of course, but so long as he stayed in his present position he could not be seen.

“Whee”

You’re free to have thoughts - for now.

That's a pretty clear cut case of 1st amendment.

What's interesting is to look at the political systems and constitutional protections the young, educated Europeans flock to: In a survey of scientists from 16 countries[0], the US is the top destination from 13 of the 15 others and the #2 choice from the other two.

There's a constant influx of these young, educated entrepreneurs, engineers and innovators coming here to America and the Bay Area. It's not a new trend; back in the 20th century America became a refuge for scientists from Europe wanting to escape! [1] [2]

I have to wonder what's Europe's end goal here... sure seems these measure won't help curb that brain drain.

[0] http://spectrum.ieee.org/at-work/tech-careers/the-global-bra...

[1] https://en.wikipedia.org/wiki/The_Martians_(scientists)

[2] https://en.wikipedia.org/wiki/Andrew_Grove