Since the vast majority of mass shooting have taken place in gun free zones obviously not having armed citizens has not prevented mass shootings.<quoted text>
Can you provide a link to a credible source?
I still haven't seen ANY EVIDENCE whatsoever that an armed civilian stopped a mass shooting. Wishful thinking or word of mouth among gun clubs is not evidence.
There are millions of guns out there and trying to disarm those with legal guns is not practical and disarming criminals with illegal guns is impossible. The federal government is telling us that they cannot enforce immigration laws because they have never tried and therefore the laws should be eliminated and all those here illegally need to be given amnesty. It seems to me that enforcing a ban on guns would be a hell of a lot more difficult, not to mention dangerous to do than deporting a few million illegal aliens. Especially since the majority of the people who would be tasked with enforcing the law, police and military, are opposed to banning private gun ownership.
Mass shootings and in fact most violent crimes are a result of failures in our mental health system and the inability of our legal system to supervise and address the issues of those with mental health issues. How many times have we hear the family members of people who hurt others or themselves say they were seeking help but it was unavailable? The latest story from Newtown is that the shooters mom was trying to get him committed. Again the system failed.