MSNBC’s David Shuster filled in for Keith Olbermann today on Countdown, and spoke with Air America Radio’s Rachel Maddow about the revelations today from the NIE report that Iran halted its nuclear program back in 2003. As Shuster and Maddow point out, the Bush administration has no shame, which is why they had no problem trotting out National Security Adviser, Stephen Hadley, to float the ridiculous notion that the report wasn’t completed until Tuesday of last week and that President Bush only learned that Iran halted its nuclear program four years ago the following day.