The second paragraph of the story has been corrected on the wire and now reads as follows:
Moderator Molly Wood, executive editor at CNet.com, said Facebook didn't feel it had any staff at SXSW who could speak on the issue. Google's privacy counsel Will DeVries was scheduled to participate but bowed out, citing ongoing litigation with the privacy advocacy group Electronic Privacy Information Center, whose representative Lillie Coney was also on the panel.