between one of the attempted attackers in the prophet mohamed contest in garland, texas, and a known isis operative in syria 109 of those messages the fbi has not been able to read them. that's something that's scary for these investigators because they'd love to know what else was being talked about. >> yeah. even if just some of them are encrypted you can't see them. that may be enough. evan perez, thanks very much. >> sure. does the u.s. have the tools needed to decode these encrypted communications? how can the private sector help as well? two men who worked in the cia and fbi are weighing in. they're going to join me here next. here at the td ameritrade trader group, they work all the time. sup jj? working hard? working 24/7 on mobile trader, rated #1 trading app in the app store. it lets you trade stocks, options, futures... even advanced orders. and it offers more charts than a lot of the other competitors do in desktop. you work so late. i guess you don't see your family very much? i see them all the time. did you finish your derivative pricing model, honey?