A simple search produces many results concerning safety of armed public vs gun-free zones.....here's one
Link below:

Newsmax: Dr. Lott, your work suggests people are more secure, rather than less so, when firearms are readily available in society.

Dr. Lott: Simply telling them to behave passively turns out to be pretty bad advice . . . By far the safest course of action for people to take, when they are confronting a criminal, is to have a gun. This is particularly true for the people in our society who are the most vulnerable.

Read Latest Breaking News from Newsmax.com http://www.newsmax.com/Newsfront/Lott-guns-Connecticut-shooting/2012/12/15/id/467903#ixzz2FnUvxTZb
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