Actually, the guns sent over by the Bush administration had RFID chips in them, not GPS trackers. They discontinued the program after they realized that the RFID technology didn't work as well in the real world as it did in testing.

I'd rather not see this issue done held up as a partisan issue. People were who ordered this to take place, not political parties, and to paint the whole democratic party with a broad brush is insane. People got killed (including a BP agent), people should lose their jobs, and people should not get in the way of the investigation through executive privilege.