Here

Bill Burkett, who has emerged as a possible CBS source for disputed memos about President Bush's Guard service, has a long history of making charges against Bush and the Texas National Guard.

But Burkett's allegations have changed over the years, and have been dismissed as baseless by former Guard colleagues, state legislators and others.

Even Burkett has admitted some of his allegations are false.

Burkett wrote a long indictment against Bush for a Web site in 2003 in which he said he personally was ordered to "alter personnel records of George W. Bush." In that article, Burkett said that when he refused he was sent to Panama as punishment, where he contracted a disabling disease.

But when asked about that charge by the Houston Chronicle in February, Burkett said, "That statement was not accurate, that is overstated."

First of all, the archives are in Colorado, not Texas. Second, he was in the Army National Guard, so how much first hand knowledge would he have of thing happening inside the Air National Guard? Third, the forged memos used Army terminology, not Air Force. Fourth, the documents were faxed from the only Kinkos in his area, a business where he has an account.

While those points don't constitute absolute evidence, they're a lot more solid that DNCBS's bogus "news" stories.