Not so long ago—just a few days, perhaps—the icy water sluicing around my bare legs was snow on a rocky mountaintop in northern Sweden ... surges through the heart of Laponia, a 3,630-square ...

"There are big red flags hanging all over the tunnel," an eyewitness told Göteborgs-Posten, describing the disturbing display discovered on Sunday in the Swedish capital. Swedish police have ...