<![CDATA[A state trooper on a crowded American highway does not need a policy briefing to know when something feels off. A tractor trailer drifts just a little too long across a lane, corrects late, then steadies itself and keeps moving with traffic. It is the kind of moment most drivers forget instantly. For the trooper, it raises a question that has become harder to ignore: Who is behind the wheel, and are they operating under the same rules everyone else is expected to follow?]]>