I've been hearing that some folks in D.C. are paying attention to what's happening now in Oklahoma: an immigration measure (HB1804) went into effect November 1 and has already survived some legal challenges. Among other things, this bill makes it illegal to knowingly transport one of the "undocumented" (under certain circumstances with some exceptions), requires certain forms of documentation to prove a worker's legal status, and requires proof of legality for access to certain public benefits. The Tulsa World has a page dedicated to this bill and the public debate over it. Some reports indicate that "thousands" may have fled even before this law took effect, and certain business claim that they are already beginning to notice "shortages" of "illegal" workers. Some of the employer-verification requirements will go into effect July 1, 2008.