These bit jumped out at me: >Furthermore, national security, public interest and law enforcement requirements of the United States prevail over the safe harbour scheme, so that United States undertakings are bound to disregard, without limitation, the protective rules laid down by that scheme where they conflict with such requirements. The United States safe harbour scheme thus enables interference, by United States public authorities, with the fundamental rights of persons, and the Commission decision does not refer either to the existence, in the United States, of rules intended to limit any such interference or to the existence of effective legal protection against the interference.
>This judgment has the consequence that the Irish supervisory authority is required to examine Mr Schrems’ complaint with all due diligence and, at the conclusion of its investigation, is to decide whether, pursuant to the directive, transfer of the data of Facebook’s European subscribers to the United States should be suspended on the ground that that country does not afford an adequate level of protection of personal data.
My reading (not a legal expert) is that data residency is the important bit here. Which in my view is a small step but not sufficient.