In areas where police resources are slim and police response times are ridiculously slow, you might need one. It could be the difference between living and dying. I have a friend right now who is going through a messy split with her husband and he is abusive and mentally ill. She has a restraining order against him. But, a restraining order is just a piece of paper. There are many women in these types of situations. And the right to bear arms provides security to them when the police cant get there fast enough.
