to why this widespread fraud is allowed to continue? finally, after weeks of calling the state's secretary of health and human services, diana duley, and getting no for an answer, we decided to ask for a response in person. secretary -- >> yes. >> reporter: drew griffin with cnn. we've been trying to reach you and talk to you about the widespread fraud that's in the medi-cal drug rehab business but we've told neither you or anybody the state of california will talk to us. the secretary at first refused to speak. secretary, do you know alex ferdnand, a convicted felon, who runs one of these clinics and has been billing the state of california for several years, despite the fact that there have been complaint registered with the department about him? he's convicted of a major insurance fraud in the state of texas, but for somehow was able to get certified and has been