This is not new information. It was available at the time of the 9/11 hearing. Part of the controversy is that this information wasn't discussed before the commission.
Those responsible for 9/11 simply can't keep there roles hidden any longer. Clinton, Gore, Gorelick, Reno... They all have alot to answer for.
Weldon was referring to "boxes of documentation". If this documentation is there the 9/11 commision, including Gorelick, has a lot of explaining to do.