After 1 Million Migrants, Europe's Borders Are Back

Since it opened in 2000, the Oresund bridge between Sweden and Denmark has been a towering symbol of European integration and hassle-free travel across borders that people didn't even notice were there.

On Monday new travel restrictions imposed by Sweden to stem a record flow of migrants are transforming the bridge into a striking example of how national boundaries are re-emerging. A year of clampdowns on migration and terrorism has all but killed the idea of a borderless Europe where you could drive or train-hop from Spain in the south...