When it comes to terrorism, what are the vulnerabilities and threats of a big stadium, explain and defend your answers?
Stadiums are most often exposed to the elements. This means greater exposure to various kinds of attacks that would not be mitigated at all by the shelter a roof and full enclosure might otherwise provide. People within the stadium would be 100 percent exposed to the agents of attack.
One problem with stadiums is shear size. It is impossible to watch everyone all the time. Security at the entrances can usually be accomplished, but they cannot screen for every possibility. There are usually a large number of people to move through the security stations at the same time. It can be difficult to balance adequate security with efficiency. Once a person or device is inside the stadium, it would be difficult to spot a problem. Stadiums are targeted because of the large number of people that would be effected. This large number of people also provides a certain amount of disguise for terrorists.
Another reason they are vulnerable is by virtue of the fact that the events that take place there are so high profile, and therefore make inviting targets for terrorist groups that are seeking notoriety. Post 3 raises some good, and scary points about the number of support staff entering the stadium day in, day out, not just on game days.
One thing that building code and fire officials are keenly aware of is the effect of being in unfamiliar surroundings. In any public gathering space, there will usually be some people who have never been there before. If anything out of the ordinary happens, those people may become disoriented and panic, contributing to the chaos of trying to move a large crowd to safety. Darkness, such as at a concert or a night game, or the presence of smoke or dust obscuring sight lines make this much more likely. This is why schools, hospitals, and nursing homes are required to have regular fire drills.
It's always a good idea to pay attention to where the exits are located before you need them. Looking around and thinking about how to leave the space is a wise way to spend a minute or two when you are waiting for an event to begin.
Obviously the biggest threat to a stadium is the sheer number of people that enter it, both on event day and beyond. The thing that scares me the most about stadiums is the fact that there might be bomb dogs, security checks, and metal detectors on the day of the event, but what about three days or three weeks before. Tours are given of these stadiums, especially new or historically popular ones. It might be difficult to sneak in a weapon on the day of the event but it would be much easier to get it in a week before, hide it, and then procure it the day of the event.
Stadiums are tremendously vulnerable. Huge numbers of people are congregated in one area. The people need to get in rather quickly and so there is serious pressure on security procedures to be quick since no one wants to stand in line for hours to get in to the game.
In addition, any major attack could well lead to chaos. There would be stampeded for exits and mass panic. This would be another huge problem in the case of an attack on a stadium.