Sourced from FauxNews, so it probably isn't true, although the AP contributed to it. http://www.foxnews.com/politics/201...ays-nsa-phone-data-collection-program-should/
This NSA stuff is BS and pretty concerning. Technology is such a double edge sword though and I've been just assuming this was going on since the 90's anyway. Im really torn on this because security is a need and realistically digital communications need to be monitored in some fashion, but what always ends up happening is shit like this http://www.theguardian.com/world/2014/jan/21/ukraine-unrest-text-messages-protesters-mass-riot
In the old days, they could see what was on your computer screen from across the street. Those CRT monitors threw off enough radiation to be detected. Not only did the govt. spy like that, so did the cable tv companies. They'd try to catch people stealing cable or PPV events. They had to physically go to the neighborhood and target specific locations. Now they see everything for everyone without moving out of their seats. It's called Progress, with a capital "P."
Oh man I forgot about this till you posted but when I lived in New Zealand I found out that they have a TV tax. If you own and watch a TV you were suppose to pay and they way they caught people was with the methods you mentioned. You be hanging out watching your favorite show and the doorbell rings. Sent from my SPH-L720 using Tapatalk
I could see how they might be able to detect the radiation patterns of a CRT monitor, as they did emit a pretty strong field, but how could they detect the image? The CRT monitors shot electrons at certain pixels to get them to light up. I wouldn't think that the raw EMF would contain discernable information.
NTSC is 60 interlaced frames per second, yielding effective 30fps. There is a vertical retrace where the beam returns to the top of the screen. They just sync up to that to derive the picture. http://en.m.wikipedia.org/wiki/Van_Eck_phreaking