When Adam Lanza slaughtered defenseless children at Sandy Hook Elementary School, his “assault rifle” was an obvious target. No one needs a weapon of war! Ban ARs! Again, again! It got to the point where the ironically-named Freedom Group bowed their heads in shame and promised to jettison Bushmaster (which they haven’t). Some gun guys pointed out that Lanza could have been more deadly if he’d used the Saiga 12 shotgun (with 70 rounds of ammo) found in the trunk of his Accord. And now that another spree killer’s used a Remington 870 to slay innocents how long before we here howls calling for a ban on “assault shotguns”? I’ll tell you this for nothing: industry sources reveal that the Navy Yard shooting’s created a run on tactical shotguns. Prudent, paranoid or both?