>> very true. >> the next day, the surveillance team tracked magdi driving. and just at that time -- >> his cell phone dials the number of undercover. and i'm notified immediately by the wire room. and they told me he didn't answer the phone. >> the undercover officer missed magdi's call. >> so, i had to call the undercover and -- >> say, the target of the investigation is trying to reach you. >> he was in a bad area for reception, so he had to move. and then -- >> that's like a nightmare. >> so, we were hoping he'd call back. >> the undercover, as usual, was confident. why were you so convinced he'd call back? >> because he called the first time. to me, in this type of deal, when you call the first time, you know, you're over the nervousness and they're going to call back. >> and magdi did call back. the surveillance team caught him on camera, this time from a place that doesn't get a lot of traffic in the 21st century. >> we know he's at a pay phone.