That's not true. The Stored Communications Act _does_ regulate this. In fact, it was passed in response to concerns that the third-party doctrine would mean that nothing would be protected from the government if it was stored by a third-party service provider.
The law says that the contents of communications may not be divulged unless certain conditions are met, even voluntarily. See 18 U.S. Code § 2702.
The European Parliament isn't (in this action, at least) compelling anyone to surveil anything.
> The European Parliament isn't (in this action, at least) compelling anyone to surveil anything.
Why shoot down something that you're adding to the article? Who said the European Parliament was compelling anyone to do anything?
https://www.propublica.org/article/nsa-spying-relies-on-atts...