According to the San Francisco Chronicle, in a column by Heather Knight that ran on Oct. 17 (why the heck wasn't this reported as straight news?)
As anyone familiar with how the Chron does such things would know, the Chron uses columnists in many in-depth investigations. Matier & Ross, for example, are local legends in this respect. Monica Showalter showed by this snark that she is ill-informed.