Oh I don't doubt that it will somewhere - this is a reminder that others aren't going to stop doing it, though and also that of all the places, the NSA seems like an unlikely source of such leaks.
Also, whilst they undoubtedly keep data around awhile, it's not kept indefinitely, surely - it has a shelf life after all. Whilst someone might get this stuff wrong in the future, again, surely that would come about most likely due to some discontinuity in this process (like if they were forced to stop awhile and then continued, losing operational details in the process).
Also, whilst they undoubtedly keep data around awhile, it's not kept indefinitely, surely - it has a shelf life after all. Whilst someone might get this stuff wrong in the future, again, surely that would come about most likely due to some discontinuity in this process (like if they were forced to stop awhile and then continued, losing operational details in the process).