Bounded cognition and the stimulus bill
According to the Sunlight Foundation, nobody (outside of the ten-person committee that negotiated it) has yet been allowed to see the stimulus bill which the House and Senate have agreed. This includes the members of the House and Senate who are supposed to vote on it today!
I know that I've argued that cognitive limits and imperfect information act as a constraint on economic efficiency; and no doubt also on political efficiency. But that doesn't seem like a good reason not to publish the bill. Maybe they have slipped in that clause on a stimulus for bloggers and they want to get it passed before the twitter crowd start asking for their own version.