>>2526325
>I presume they monitor the entire EM spectrum in such a way that they capture all transmissions of every kind everywhere.
NSA was in the business of monitoring the airwaves long before they got in the business of monitoring the internet.
The difference, I suspect, is that while they probably still record everything, maybe its still old school hardware based?
Probably not instantly searchable by keyword like xKeystore.
Thus, it wouldn't likely get picked up by any boy scout NSA/FBI or 5eye monitors.
So, either they went back and found it after the started looking at Nellie…
OR, someone ratted them out and the NSA was monitoring the whole time.