If AWS gets a letter from an American 3-letter agency to plz turn over this and that data and don't tell anyone, they're going to comply, no matter what kind of paper "privacy shield" agreement the politicians negotiated this time around.
To be a bit facetious/snarky: And we compare this to the EU's version where they're outright open about it and censor-away? "We're not being bad, this is legal censorship!"