There is no evidence to show that this is a problem. What we have is the typical whining of those who simply want to push their anti gun agenda. Any opposition to the lawful concealed carry of firearms, regardless of where, is based on nothing more than conjecture, rhetoric, and flat out lies. The right of the people to protect themselves doesn't end where a campus or government building begins, and it will do nothing to stop a criminal who is going to do it anyway if they choose. Gun control does nothing more than penalize law abiding citizens who have committed no crime.