Since the tragic attacks on the World Trade Centre in 2001, the whole world has been cautious about who they can trust, where they’ll stay safe and what events/places to avoid as a precaution. Sports stadiums and arenas can hold thousands in a concentrated area and last year, the Department of Homeland Security and the FBI warned that terrorists could take an interest in attacking these venues, while at full capacity. Officials are aware of the threat of a possible attack and have been planning what to do, should something ever happen and all of the crowds need to be evacuated quickly. One can only…