Mass shootings are less deadly when stopped by civilians than when by police.

• A 1997 high school shooting in Pearl, Miss., was halted by the school's vice principal after he retrieved the Colt .45 he kept in his truck.

• A 1998 middle school shooting ended when a man living next door heard gunfire an

d apprehended the shooter with his shotgun.

• A 2002 terrorist attack at an Israeli school was quickly stopped by an armed teacher and a school guard.

• A 2002 law school shooting in Grundy, Va., came to an abrupt conclusion when students carrying firearms confronted the shooter.

• A 2007 mall shooting in Ogden, Utah, ended when an armed off-duty police officer intervened.

• A 2009 workplace shooting in Houston, Texas, was halted by two coworkers who carried concealed handguns.

• A 2012 church shooting in Aurora, Colo., was stopped by a member of the congregation carrying a gun.

• At the recent mall shooting in Portland, Ore., the gunman took his own life minutes after being confronted by a shopper carrying a concealed weapon.

"gun-free" should depend on whomever owns the property. However, the Public Sector is subject to the constitution, and the right to bear arms is mostly important in the public sector.

People who intend on shooting up a school won't be deterred by a sign that says "no guns allowed." However, he will be stopped by someone who also owns a gun.

Much regulation is not based in reality. It is based in theory, the idea that criminals obey regulations, thus never committing crimes.