Not just the surveillance. The other fear is that an adversary can just shut out countries at a whim. Of course, it's easier to just change a policy at an endp

Not just the surveillance. The other fear is that an adversary can just shut out countries at a whim. Of course, it's easier to just change a policy at an endpoint you control, rather than cutting up undersea cables and shooting down satellites. "Oh, a fishing trawler has cut your country's internet access ? Tzz, tzz, tzz, those sub-par american cables ... No worry, you can buy ours that happens to be much sturdier and at the low, low price of whatever you paid before the cable was cut".