how did he maintain that control behind bars? >> historically, his organization, the sinaloa cartel, also called the federation. and while it's unclear exactly how the structure of the federation works, we know that that there are other figures, there's a character who is known to be almost in partnership with chapo. when's brilliant about chapo is that he's this iconic legend in mexico and now across the world. in fact the evidence is his presence in prison or out of prison is pretty irrelevant. the price of cocaine in l.a. or chicago or new york didn't go up when he got caught. and it didn't go down when he escaped. >> wow. angus, a fantastic documentary. congratulations on that. thank you for your time. >> thank you very much. a weather alert. 53 million americans under a heat advisory today.