"I'm not in a position to make a comment right now because the operation is underway," says Lt. George Cavinta of the Humboldt County Sheriff's Office. "The FBI has the command post, and it's all the FBI's warrants."
Cavinta said that someone -- either his office or the FBI -- will likely make a statement by noon.
UPDATE, 7:49 a.m.: A spin around Arcata about half an hour ago revealed nothing unusual. Nothing going on at the downtown medical marijuana clinics, nothing visible in Sunny Brae -- at least the parts of Sunny Brae I toured -- and nothing in a couple of other neighborhoods near downtown.
UPDATE, 8:26 a.m.: See here.