I went to the American Consulate General today to get some new pages for my passport. Chinese visas require a 2-page spread, and I’ve only one left—but another four years on the passport. The receipt for the charge used a phrase which is not a bad fit for what I’m up to here. I work on religion, a “sensitive” subject, but not on any particular tradition or within the bounds of any discipline well established here: Sensitive but Unclassified indeed! Maybe I should add the letters SBU to my name!