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>> in terms of exact locality. >> exactly. in terms of exactly where he was. but think about this, in an interesting twist, did his meeting not aid and assist in the capturing of el chapo had that not occurred, the intelligence that was gathered as a result of that and as a result of the subsequent communications and conversations, would the authorities have been that close and would the authorities have gotten el chapo, and would we be discussing it now? and so certainly you can argue not only did he not hinder apprehension, hinder prosecution, obstruct governmental administration, but he aid...

Officials. two, in the event he did, what harm might that exact upon him and his family? that is something that will be looked at seriously. >> sylvia, there was a lot at stake for el chapo to take this kind of risk, to commandeer or in some way be involved in making sure this meeting happened and his hope would be that sean penn would not tell anybody. but we know in that article written by sean penn he talks about the paranoia, you know, the paranoia of possible drones flying overhead during this meeting with el chapo. so, you know, in your experience with air force, do you think that they w...

Still -- question is still how long it will take. >> with el chapo back in custody, attention turns to his cartel and just who will run it. nick valencia looks at the man who could replace el chapo at the top of the drug ring. >> reporter: while el chapo was behind bars, the cartel was effectively run by his right-hand man, ismail zambada. now the next generation might be stepping in. according to reports, a chicago-based drug dealer for the cartel recently testified that zambada has been grooming his own sons for the last ten years. many believe they're in line to inherit the drug empire. mex...

New this is week they would not pay for a wall and said any suggestion that they would was irresponsible. just how realistic is building a wall between the two countries and what would a border wall like this accomplish? joining me now, sylvia longmeyer, a drug war analyst. si sylvia, is even possible to build a wall that donald trump is talking about? >> no way it's remotely practical. you have the expense. one mile of a border fence costs anywhere from $1.6 million to $22 million. have you environmental factors to worry about. and a lot of the territory along the southwest border is privatel...

Sinaloa, apparently with intelligence provided by the dea and the u.s. marshal service. now attorney general loretta lynch released a statement expressing her concern over the escape of "chapo" guzman and adding i quote, the u.s. government stands ready to work with our mexican partners to provide any assistance that may help support his swift recapture. mexican president is also calling for an investigation to see if any public officials have been part of "el chapo's" escape plan fredricka. >> juan carlos lopez, thank you so much. let's bring in sylvia longmeyer, author of "cartel, the comi...