Originally Posted by
14940674
The European Commission sets E.U.-wide security regulations. If the Commission agreed to accept PreCheck-screened passengers, Pistole would be correct in saying that a deal had been reached with the E.U.
The European Commission isn't without limits on what it can do to set EU wide security regulations and where.
There are parts of the EU that aren't part of the customs union which includes most of the EU.
How would the EC refuse to accept PreCheck screened passengers? By disallowing the limited elimination of transit screening on arrival for US-originating passengers that was already done before the PreCheck expansion just announced?