Dealing with Emergencies

Dealing with Emergencies 
How shall we reason through to the decision of the law enforcement authorities at the 1972 Munich Olympics?
How are we to balance protecting people versus allowing people to participate in and enjoy an event?
After all, doing away with events entirely would be easier in terms of safety, but most people would say that that “solution” is worse than the problem.
Also, how does one approach dealing with threats in ways that do not alienate or marginalize groups of people?
The Olympics bring this to the forefront, as it brings people together from literally all over the world in what is intended to be a welcoming environment.