We are not "reverting back" to the Wild West Days. Compared to today, the Wild West was the Tame West. If Jesse James lived today, he wouldn't make the national news. If Billy the Kid lived today, he wouldn't make the local papers. Even Bonnie and Clyde would escape the national headlines.
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Other posters have posted that in the same weekend that 58 people were killed in Las Vegas, 30+ were killed in Chicago. Did you read about even one of those murders in The Denver Post? Of course not. 
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Crime and Violence are way up, but it is not because of "more guns" because, per capita, more people had guns in the "Tame West" then we do today....and more law-abiding citizens carried guns in the "Tame West."
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Guns aren't the problem. If they were we would have had "mass shootings" on airplanes, on ships, in theaters, and at ballparks in the 1920s and 1930s and 1950s....and not 24 of the Top 25 in the last 40 years.