Why haven't murders and violent crime been reduced in cities with Gun Bans?

Chicago Police Department statistics, reveal that the City's handgun murder rate has actually increased since the strictest ban in the country was enacted and that Chicago residents now face one of the highest murder rates in the country and rates of other violent crimes that exceed the average in comparable... show more Chicago Police Department statistics, reveal that the City's handgun murder rate has actually increased since the strictest ban in the country was enacted and that Chicago residents now face one of the highest murder rates in the country and rates of other violent crimes that exceed the average in comparable cities.
http://articles.cnn.com/2010-03-02/justi...
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