In 1996, 140 children died after being accidentally shot; in 2012 the figure was 259 with comparable numbers in between. About 1,500 children are hurt by guns every year. "Trigger Locks" require entering a combination to use the gun (or some other locking method); they are intended to reduce inadvertent use by children or other unauthorized users.

3. The tragedy at Columbine High School a year ago illustrates the deficiencies of current gun control laws. False. Eric Harris and Dylan Klebold violated close to 20 firearms laws in amassing their cache of weapons (not to mention the law against murder), so it seems rather dubious to argue that additional laws might have prevented this tragedy. The two shotguns and rifle used by Harris and Klebold were purchased by a girlfriend who would have passed a background check, and the TEC-9 handgun used by them was already illegal.

True. The 31 states that have “shall issue” laws allowing private citizens to carry concealed weapons have, on average, a 24 percent lower violent crime rate, a 19 percent lower murder rate and a 39 percent lower robbery rate than states that forbid concealed weapons. In fact, the nine states with the lowest violent crime rates are all right-to-carry states. Remarkably, guns are used for self-defense more than 2 million times a year, three to five times the estimated number of violent crimes committed with guns.

3. The tragedy at Columbine High School a year ago illustrates the deficiencies of current gun control laws. False. Eric Harris and Dylan Klebold violated close to 20 firearms laws in amassing their cache of weapons (not to mention the law against murder), so it seems rather dubious to argue that additional laws might have prevented this tragedy. The two shotguns and rifle used by Harris and Klebold were purchased by a girlfriend who would have passed a background check, and the TEC-9 handgun used by them was already illegal.

Leading British, French, German, Italian and Spanish newspapers have blamed the United States for listening to Charlton Heston and the National Rifle Assn. Many of their claims are a little strange. At least two papers said we should ban semiautomatic assault weapons (even though the killer did not use one); another said that buying a machine gun is easier than getting a driver's license (even though no one can legally buy a machine gun); a third wrote that gun violence is becoming more common (when in fact the U.S. homicide rate has fallen dramatically over the last dozen years).

There are federally required background checks on purchasing weapons; many states (including Virginia) limit gun purchases to one a month, and juveniles may not buy them at all. But even if there were even tougher limits, access to guns would remain relatively easy. Not the least because, as is true today, many would be stolen and others would be obtained through straw purchases made by a willing confederate. It is virtually impossible to use new background check or waiting-period laws to prevent dangerous people from getting guns. Those that they cannot buy, they will steal or borrow.

There are many compelling cases. In one Mississippi high school, an armed administrator apprehended a school shooter. In a Pennsylvania high school, an armed merchant prevented further deaths. Would an armed teacher have prevented some of the deaths at Virginia Tech? We cannot know, but it is not unlikely.

The left-wing blog ThinkProgress has compiled a list of massacres perpetrated between 1999 and 2012. Let’s have a look at the most recent ten:

Here is a list of potential national tragedies that were prevented thanks to an armed populace (as compiled by the Libertarian Party):“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 and apprehended the shooter with his shotgun; 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.”