A path can be reasonably retraced using inertial guidance, if things aren't too windy.
It doesn't need to get all the way home, just far enough away in the right general direction without hitting an obstacle... And most prisons are not surrounded by skyscrapers.
It doesn't need to get all the way home, just far enough away in the right general direction without hitting an obstacle... And most prisons are not surrounded by skyscrapers.