One unfortunate side effect of the Bush regime’s "discipline" (the euphemism that some self-hating journalists adopt to refer to the White House's refusal to treat them as if they have a legitimate role in the democratic process) is that it stokes the fires of innuendo, rumor-mongering, and conspiracy theorizing which in any event tend to swirl around those who hold power. The lack of facts provides a swamp for conspiracy theories to breed in. For example, the White House's refusal to share information energizes those who suggest that Dick Cheney took dictation from energy company executives, as well as for those who question what took place at the Pentagon on the morning of September 11, 2001.
Let me be clear: I don’t buy the conspiracy theories. By definition, conspiracies theories only appear when there's just not enough evidence to make a definitive case, and I prefer definitive cases.
With that said, if the Bush regime were engaged in the skullduggery that the theorists insinuate, then its behavior -- the instinctive "no" regarding all requests for information -- would be indistinguishable from what we actually observe the White House doing.