"Bush must have intervened to produce this change of course,"
you're absolutely correct.
"It's long past time that Bush stopped defending clinton from his treasonous malfeasances."
I continue to hope that Bush is not quite moronic enough to have been doing that. I believe rather that he was protecting his own administration against some damage. I'm quite certain, however, that the damage to the Bush administration will be very small compared to the damage to the Clintons.
Bush has gone out of his way to be nice to clinton from the time that he invited him to his inauguration and allowed him to upstage the ceremony. If the Able Danger evidence was ordered destroyed during the clinton administration, then it's hard to see how the Bush administration can be more than peripherally to blame for ignoring it, because they no longer had the detailed evidence to work with.
There's another 900 pound gorilla lurking here, too, because it's likely that one reason for destroying the evidence and building the wall was to cover up clinton's treason with China. I doubt whether that issue will be raised, but I think it's there. I'd love to hear a few people who know what happened get permission to testify about what they know.