The AJC is sounding the alarm. Apparently a rocket launcher was found near a MARTA station in Atlanta.

A military rocket launcher was found Tuesday near a rail-transit station, but the FBI said it looks to be a less-powerful training model unable to bring down an aircraft or destroy a train.

Fully outfitted versions of the M136 AT4 launcher are used by the Army to destroy light tanks. The one found near a MARTA station west of Atlanta will be examined to be sure it is only a training model, said FBI spokesman Steve Lazarus.

Let's hope it was only a training model. If it was the real thing, it must have been quite dangerous, right? Well, maybe not.

You see, no matter how powerful a rocket launcher is, it isn't much good without any rockets. Today's rocket launchers are pretty much a fiberglass tube with a scope or aiming sight, and a trigger mechanism. In fact, the military MT136 AT4 launcher is meant to be disposable.

The M136 AT4 is a lightweight, self-contained, antiarmor weapon consisting of a free-flight, fin-stabilized, rocket-type cartridge packed in an expendable, one-piece, fiberglass-wrapped tube. [...]

The round of ammunition is self-contained in a disposable launch tube.

(emphasis mine)

I'd bet dollars to donuts that what was found was just the empty launch tube. Without a rocket, the launcher has all the lethality of a baseball bat. The bigger question is, if the Army lost an empty launch tube, what else has turned up missing?