Nearly four years, several investigations and realignments, and one in-the-books blue ribbon investigatory panel later, it seems that we may have known all about Mohammed Atta and three other 9/11 conspirators a full year before the event.

Presumably, Congressman Weldon was having a beer with one of the members of the “Able Danger” team last week when he mentioned Mohammed Atta in passing…

“Mohammed Atta… Mohammed Atta..” the Pentagon operative must have mused. “Oh, wait, you mean Mohammed Atta. We were tracking a guy named that back in 2000! Thought he might be planning a terrorist attack here on US soil and thought about recommending that the FBI pick him up.”

“Really?” Rep. Weldon probably asked.

“Uh huh. Say, you don’t think he’s maybe related to the Mohammed Atta that took out the World Trade Center, do you?”

“Could be.”

“Hmm. Don’t know why I never made the connection before. Live and learn. Hey, the next round’s on me.”

Not plausible? How about this, then: We know that members of the 9/11 Commission met with “Able Danger” guys in Afghanistan in 2003, and that they claim to have told the commission about the whole “Atta” thing, and that the commissioners don’t remember the name ever being mentioned. So… we have Philip Zelikow, staff director of the 9/11 Commission, out in the hills near Tora Bora, gazing into the sunrise and talking with an Able Danger operative…

“Among other things, we knew that Mohammed Atta and three other hijackers were in the country and plotting, and we recommended-”

“Excuse me,” Zelikow might have interjected. “Did you say ‘Mohammed Atta?’”

“Yes.”

“The movie actor whose ability to create ‘everyman’ characters who are frequently suprised by their own hidden abilities has catapulted him to the upper echelons of Hollywood superstardom?”

“No,” the A.D. operative probably said. “I think that you’re thinking of ‘Matt Damon’ there.”

“Oh, oh yes,” Zelikow must have replied. “Matt Damon. Sorry.”

“It’s okay.”

“Silly of me. Anyway, what do you think the chances are that ‘Ocean’s 12′ is going to measure up to its stylish predecessor?”

No? Well then, what’s left? As a guy who was living in New York on 9/11, I feel entitled to at least one hearty “What the fuck!?” Is this incompetence, bizarre secrecy, understandable discretion, or simple ass-covering? And nearly four years, multiple investigations, and thousands of corpses later, should any of those explanations hold water? Or is this just one of Rep. Weldon’s famous practical jokes, just like the time he superglued Barney Frank’s tie to his desk while he was napping?

You can provide your own answers below. They’ll be at least as reliable as anything we’ve gotten from our government so far.