The current conventional wisdom on the right side of the blogosphere is that the 28 pages (not to be confused with the 16 words) were classified as a political calculation to undermine the Saudis.
I don’t know what to think about this theory. On the one hand, it ascribes far more intelligence to the administration than its critics usually credit it with (so if this turns out to be the actual strategy, those critics will say it was all Karl Rove’s idea). On the other hand, I can’t think of a good domestic political reason to cover for the Saudis, since their support in the U.S. generally doesn’t extend beyond their bought-and-paid-for segments of the Washington establishment (so if this turns out to be a domestic politics thing, the president’s supporters will say it was all Karl Rove’s idea).
So, I honestly don’t know what’s going on. But regardless it’s fun to watch the Saudis twist in the wind.