Hillsborough Memorial

One of the main reasons why it happened was because fans were then caged in Pens. There was now way out really as the pitches were fenced off. This was a result of the hooligan element which was rife at the time. Any aggro now is small beer compared with then. That combined with the police decision to funnel all fans through an open gate into the pens caused the problem. The taking down off the fences was a positive result of the Taylor report, but the elimination of terracing was a negative. Done properly terracing is/ would be less dangerous than putting loads of seats in the way for people to trip / fall over.
Ticketing allocations have if anything though got even worse not better. In no way related, but Wembley is a disgrace at any major match just after half time.