The man has actively worked to defend the Bush/Cheney torture regime. I don't give a damn what his motivations are. He's a monster and he needs to be removed, and the Justice Department needs to prosecute these crimes.
When the torturers return to power, they won't be satisfied with butchering foreign suspects. This brutal machine will be turned on its citizens.
I honestly don't know why Obama chose Rahm in the first place. What's the deal with that?