I heard today that the pollution is also exacerbated right now by extreme humidity, as Mr. Rogge said, and by dust from the Gobi desert. Hard to get rid of either of those things!
I'm so moved by these opening ceremonies. It goes to show that Olympic ideals really can overcome political tensions for the briefest moment, even though they're really roiling right now in some areas of the world. Also, the little Chinese earthquake survivor who walked with Yao Ming had me in tears ... what a brave little boy!