What should we make of this?

Firearm Found in Suspicious Bag at BWI

Two concourses serving Southwest Airlines were evacuated for an hour early this morning at Baltimore-Washington International Thurgood Marshall Airport, officials said, after security screeners spotted a gun inside a carry-on bag and were unable to detain its owner said.

The .25-caliber semiautomatic pistol was discovered at 6:40 a.m. at the security checkpoint serving concourses A and B, a spokesman for the Transportation Security Administration said. It was in one of two bags carried by a male passenger; the other bag had already been screened and cleared, spokesman Christopher White said.

"I am glad they conducted this drill and discovered the problems now. Far too many people want to criticize and call this a failure. It would only be a failure if we sat around and did nothing while people died. Drills like this help prepare us for the future. "

The passenger abandoned the bag containing the gun, and disappeared into the concourses, White said. Security officials evacuated the concourses at 7:11 a.m., and used police dogs to search the area.

The man was not located.

It is even more concerning in light of this post.

And why, oh why, do we get a description of the gun, but no picture or description of the guy who tried to breach security with it?