Bush knew Saddam had no weapons of mass destructionProblem is, this is old news. NBC tried to make it stick back in early 2006 and couldn't. It's doubtful Salon can do much better now.
The Sabri story is like many others before--hindsight. According to CIA there had never been any reliable penetration of Saddam's inner circle so it's reasonable to assume they didn't know whether this guy was gaming them or not. There was a much longer laundry list of why they shouldn't believe him. So, to say "Bush knew there were no WMDs" represents the heights of slantism--all he knew is there was a story from a regime insider who said Saddam was clean, which wasn't jibing with his actions in public. But that's not the point.
The point is why Blumenthal re-released it now. Is there an air of desperation in the Democrat air? Does a calmer Iraq and Bush's trip signify a coming storm for the Donkeys who've staked their careers on our failure in Iraq? Hard to say, but we can guess.