We're talking about an adversary that potentially taps and stores all traffic at major endpoints worldwide. They packets have to go further than a few hops, but

We're talking about an adversary that potentially taps and stores all traffic at major endpoints worldwide. They packets have to go further than a few hops, but not to a specific destination, not necessarily. Think taping a playing card to the spokes of a deaf person's bike. You won't automagically hear it when they're riding it in the basement, but if they ride through the streets, you'll know.