> But getting the bits from under the ocean somewhere back to > Fort Meade without being detected must be more interesting.
Can't they hire their own fiber in the cable, splice it, and feed the preprocessed data in there? > It probably is true that the right wavelength laser will > penatrate water for some limited distance so a link could be set up from > a bouy near but below the surface to a sensitive telescope in earth > orbit. I heard copper vapor lasers would do, that they are used for eg. intersubmarine communication. But can't confirm nor deny this. > ...as there was no overlap of traffic on multiple wires. What techniques are used to pick the data from the mix of the signals from the cables with more wires? > Doing this for a sonet ring carrying 10 gbs or so as some > undersea cables now do seems rather challenging - at the very least > how one would follow changes in channel allocations and traffic loading > would seem very problematic. And intercepts that are weeks or months > old would be very much less interesting in most cases than near real > time intercepts - particularly of targets like terrorists. It's being said that NSA is losing its grip on communications, to their great joy. It must make them mad. Hee! :) ...maybe the era is coming when even the US will be forced to play fair?
