of marijuana. there is so much drug traffic coming from mexican cartels, it has to be destroyed at secret locations like this. el chapo was so rich, he made the forbes magazine billionaires list. celebrated in mexico in music and on videos. he s been indicted in the u.s. on federal drug trafficking charges. this is a huge failure. he s one of the most powerful drug cartel leaders in mexico, if not the most powerful. reporter: pierre thomas, abc news, washington. many said it couldn t be done, but allegedly, a historic announcement on a nuclear deal is possible with iran expected looking like later today. in vienna, top diplomats indicated that they reached an agreement to restrict iran s nuclear program and lift sanctions. but they also warned that last-minute obstacles to delay an announcement. if a deal is reached, it would still have to be reviewed by lawmakers in iran and the other six countries involved in the talks. and breaking news overnight in the efforts to resolve