The Quackometer and Holfordwatch blogs report that the British Chiropractic Association, presumably fired by their New Zealand colleagues' attempts to silence scientific opinion, have filed a suit against Simon Singh following an article originally published in the Guardian (but now unavailable). Hopefully this will engender a major Streisand effect, and I fully expect the case to fail.
See also the news report in the Telegraph (I notice the Telegraph journalists refer to the chiropractors as "Doctors" and doubt this is justified).