Email cleanup

More cleaning of my overflowing mail inbox. File this one under Read (eventually) - Data models for post-passage Federal legislation. The author sez "Ordinarily, it would not pass the who-cares? test for any but hardened, bitter legislation geeks and Linked Data roustabouts, but it does have a couple of things about the more commonly used US Code finding aids that folks who spend time rummaging in the Code may find interesting."