Why did California reject new limits on solitary confinement for juveniles?

Barry Krisberg quoted in The Huffington Post, July 3, 2012

Barry Krisberg, a criminal-justice expert at the University of California at Berkeley School of Law, said he is more concerned now about the county facilities than the state institutions. “There could be whole wings where they could be spending days in confinement. Nobody knows,” said Krisberg, who has served as a monitor of court orders at state facilities.