I called it last year -- and the latest revelation about warrantless data mining supports my supposition.
The quaintness of search warrants -- Maybe the Bushies don't care about getting warrants because they have never intended to use any of what they find out in a legal way, whether in prosecutions or not. They wouldn't want warrants, because they wouldn't want a record anywhere of what information they were/are mining. In other words, the whole program is about oppositional research. It's the Hans Gruber tactic. Make the good guys think you're after something completely unrelated, and rob the world blind under their noses.