Public safety should be paramount, but the hysteria about the breakdown in segregation has its roots in a different era. Football must evolve.
Match was delayed by an hour as thousands of visiting fans outside the stadium prevented Arsenal supporters from getting to the turnstiles.
Would English fans have been given a harder time if they had done what Cologne's did at Arsenal on Thursday night?
Move comes after Arsenal said they would conduct a full review to determine how vast numbers of Cologne supporters gained access to home sections.
Mark Ogden discusses whether British clubs would receive similar coverage had their fans behaved the same as Cologne's fans during the Europa League match against Arsenal.
Arsenal beat Cologne 3-1 in their first Europa League group game at the Emirates but the headlines were all about what happened beforehand.