The U.S. Constitution is not sacred; it can be changed for good--the 13th Amendment abolishing slavery--or bad--the 18th Amendment prohibiting alcohol that not only incarcerated thousands of people but led to a rise in organized crime, as the bootlegging of alcohol became an ever-more lucrative operation.  The level of gun violence in America is appalling and thus far nothing effective is being done about it. Whether it's the guns or the people who wield them, what we're doing is not working. It appears that studies support the premise that fewer guns result in less gun violence and doesn't lead to an increase in violence by other means, but an overall reduction.  Nevertheless, the gun lobby remains resolute and unwilling to compromise.  In the case of the Second Amendment and militias, with the majority of Americans wanting some form of viable gun control I don't think it's a big reach that constitutional modification may be in the offing if things continue on the way they have.