Gregg Easterbrook says that Bush's plan for renewed space exploration will cost a lot more than he claims and take a lot longer. In fact, Easterbrook thinks both current estimates are absurd to the point of dishonesty.
Also: Sean Penn is writing articles about what he observed on his recent trip to Iraq. Here's Part One and here's Part Two. I would never assume that anyone should put any special stock in an actor's views just because he's famous, but his report is interesting just as the view of someone who's been there.