This is great, but misses one important fact. Knowing the level of corruption in the Brazilian government, this assumes no one who works on the optics can be bribed by the NSA. I suspect that is improbable.
Short of doing like the DOD does for their classified dark fiber, where they put each strand in a metal pipe, which is pressurized with gas and monitor the pressure in the pipes. When the pressure changes (due to a break in the pipe or someone trying to tap into it), heavily armed security will be dispatched to said location with a quickness.
Short of doing like the DOD does for their classified dark fiber, where they put each strand in a metal pipe, which is pressurized with gas and monitor the pressure in the pipes. When the pressure changes (due to a break in the pipe or someone trying to tap into it), heavily armed security will be dispatched to said location with a quickness.