Conspiracy. Nice. Basically, in order to get around those quaint things in federal law like the federal records act that requires White House written communications to be archived, and other pesky things like congressional subpoenas, Bush decided to have his top employees use non-White-House email addresses and Blackberrys, both issued by the Republican National Committee, so that their particularly embarrassing work, like the firing of the US Attorneys, would never appear in the official record – i.e., there’d be no evidence. Only thing is, they got caught.
And surprise surprise, some emails were mysteriously deleted.