How about the NDAA? Now he can kill American citizens without warrant or investigation, legally; Bush couldn't do that.
But the main thing is, Obama campaigned so heavily on transparency, and lighting up the "police state", yet he's done the exact opposite. Even more inexcusable, since he's claimed AQ to be decimated and terrorism to be on the wane. Then what's the excuse? At least Bush was reacting to 9/11.