At the time George W. Bush gave his speech to the UN, the speech that everyone expected would be devoted to Iraq, the amount of time devoted to the evils of the international sex trade seemed mysterious, even inexplicable. The best explanation I could come up with at the time was that it was filler thrown into the speech becuase the warring factions within the administraiton couldn't agree on much else.
Now, though, an alternate explanation is taking shape: Karl Rove is a genius. The speech was an attempt at political innoculation against the potential corrosion from the Neil Bush sex scandals stemming from his divorce case.