Other than that the story was accurate?

Chicago Tribune:

Guns are a sensitive topic, especially now, and a graphic we ran on Page 18 of the Friday, Jan. 18, paper failed to account properly for that sensitivity.

That’s the thing about errors – making an obvious one, as we did here, automatically raises questions about our credibility.

First, we made a blatant and inexcusable labeling error. In an attempt to explain what makes a gun an “assault weapon,” we mistakenly labeled the gun’s sling attachment as a mount for a bayonet or grenade launcher. We apologize for the error and have published a correction.

Readers found other issues with the graphic as well. Some questioned our use of the term “spear” to describe a bayonet’s function. While the dictionary defines a spear as a weapon for throwing or thrusting, it would have been more accurate to call a bayonet a detachable knife that can be used in various ways, including close-quarters combat. When attached to the gun, it becomes a spear-like weapon for thrusting. We did not mean to imply that the gun would be thrown or used as a projectile.

In our description of the flash suppressor placed at the end of the gun’s muzzle, we said the device breaks up the explosion that results from firing the gun. We also said that “some find the suppressor controversial as it could also make the flash from a shot less visible, allowing a shooter to conceal his position.” One very knowledgeable and articulate reader took issue with that statement, as concealment is not the suppressor’s primary function — it’s a safety device to prevent fires. We never said it was the suppressor’s primary function, only that it conceivably could make a shooter more difficult to locate, which is why it’s controversial.

Other readers questioned whether any attempt to define an assault weapon should even include semi-automatic guns, which fire one bullet at a time. (Fully automatic weapons, which fire continuously for as long as the trigger is pulled, are already banned and have been for decades.) The point of the graphic was that certain characteristics can get a semi-automatic gun classified as an “assault” weapon, depending on the jurisdiction. The federal assault weapons ban expired in 2004, but some states still have versions of the law in place, and an accompanying chart showed how the federal law differs from laws in California and New York regarding features such as flash suppressors and bayonet mounts.

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You can see the graphic at the link above.  The labeling of the sling attaching point as a mount for a bayonet or grenade launcher is just laugh out loud funny as is the discussion of the bayonet as a spear like function.  What is even funnier is the belief that someone would find a bayonet useful as a weapon of mass murder.  They are close combat weapons for situations when ammunition has been expended or in dealing with a final assault.  One of the jokes among Marine officers when I was going through training is that the command, "fix bayonets" was one to strike terror into both sides at the same moment.  The likelihood that a shooter using the weapon for indiscriminate killing would find a bayonet of value is just ludicrous.

In hand to hand combat a small shovel called an entrenching tool can be used as a weapon, yet no one would outlaw shovels as assault weapons.

I would cut them a little more slack on the flash suppressor   The critics are right about its roll as a safety device, but it also makes it harder for an enemy to find the riflemen in a fire fight at night.  But for the purposes of most of the mass killers it is meaningless because they don't need concealment since they are killing unarmed people.  The AR-15 would also not be the weapon of choice for shooting from concealment as a sniper.  Weapons that are better suited for that purpose have not been banned as assault weapons.