Europe’s borderless dream - and its blind spots

The Christina Block case exposes a dangerous gap in Europe’s system of cross-border justice, where Denmark’s opt-out from EU rules helped turn a custody dispute into a years-long ordeal.

Dear Reader,

Is modern Europe borderless, or are we living in a dangerous illusion conjured by the disappearance of border posts and other physical infrastructure?

This question began troubling voters during the refugee influx of 2015, when borders were permeable enough to allow migrants to travel deep into the EU, but the system for returning them to the…