At the political level this is going to fuel the conflict between USA and EU. Gas pipeline, data privacy - times have changed forever it seems between USA and EU.
The EU wants privacy & security guarantees that US companies can't deliver and special deals with the US government can't really fix that. But I'm sure US companies will adapt eventually.
And this goes in both directions of course. For example European banks have to be really careful in dealing with US citizens due to laws like FATCA.
Their fix is of course to require you to check the "I am not a US citizen" box.
Oceans rise Empires fall
We have seen each other through it all
And when push comes to shove
I will stalk all your communication
To remind you of my love