Cologne Mayor Henriette Reker has promised new measures to stop violence in Cologne.

OPINION: Germany is reeling from the news, hidden for several days because of its political sensitivity, that as many as 90 women were sexually assaulted by a crowd of young men of Middle Eastern appearance outside Cologne’s majestic Cathedral on New Year’s Eve.

This is, as the local police chief put it, a “whole new dimension of crime” for Germans to confront.

No woman in North Africa, however, would be the least bit shocked.

"This is obviously a new dimension in organised crime" ... German Justice Minister Heiko Maas addresses the Cologne assaults.

FABRIZIO BENSCH/REUTERS

“This is obviously a new dimension in organised crime” … German Justice Minister Heiko Maas addresses the Cologne assaults.

There is a lot we still don’t know about the Cologne attacks, including whether they were organised ahead of time on social media and whether the actual culprits were refugees, petty criminals who have been plying the area around Cologne’s train station for years, or both. All the police have said is that the complaints were made, in one case of rape, and that the men were aged 18 to 35, many of them drunk and of “Arab or North African” origin.