Kim du Toit has some further thoughts and information on the problem with ATF in Richmond 2 weekends ago. He has the answer to my "how did the cops know who to visit" question. Now that I hear that answer, this whole think stinks even more.
Many folks are still waiting some local media confirmation on all this, but as noted by a commenter (poster or source) on VCDL, there seems to be a blackout on local media coverage. This might be taken as a negative confirmation, except this is getting media time in other areas of the country.
This could still turn out to be a very successful hoax, a possibility pointed out by many others, but I don't think so. VCDL isn't noted for going off half-cocked about gun issues.