More than 500 complaints of sometimes violent sexual assault have come to light since New Year's Eve in Cologne, Germany. Delayed police reports say women were groped, abused and forced to run a gauntlet. Some of the suspects who have been detained are from North Africa and the Middle East. But police reports were delayed, and that's led to charges of a cover-up on behalf of innocent refugees. Outrage in Germany is growing with potentially dire consequences for innocent refugees — and for one of Europe's historic achievements: Some of the open borders finally established after centuries of warfare are closing again.