Weak article - nothing really about driving on other country's roads (Germany is an excellent example). In Germany, the autobahn is unlimited speed but in other areas, it's quite strict and every zone has a speed limit sign and then when that limit is over, it's the same number with a slash through it (i.e. the end of that rule). Like everything else, the US has so much to learn.
.... although the yellow stripe between opposite directions of traffic is something the rest of the world sorely needs.