nsa still does not know, really know -- they know what he had access to, they don't know actually what he downloaded. >> it's a great concern, and it springs from the fact that he never should have had the capability to hack into, or have access to -- he didn't hack -- have access to that information. and i hope to god we have changed the procedures as to who gets what information. and i get back to the old need to know. >> john mccain, thank you very much for joining us today. >> thank you, andrea. >> be sure to tune in tonight for brian williams' exclusive interview with edward snowden. the primetime special airs at 10:00 p.m. eastern. we'll have much more on that tomorrow, of course, right here on "andrea mitchell reports." and we'll be right back.