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... that supports Bush policies, we move farther away from the possibility of holding anyone in that administration accountable. How can a president support (dare I say allow?) the investigation and possible prosecution of a previous administration for "policies" he himself embraces?
A president's actions concern me more than his motives do. Motives are independent of the capabilities the executive branch now has and the motives future administrations may have won't change those capabilities. And even if Congress is able to pass legislation reining in the executive, what's to stop a president from "ensuring the nation's security or defending its Article II powers in the future (e.g., Bush & FISA)? Only being held accountable can do that.
Bystander - thanks for that!