[Duhveed]

They did NOT "slam on their brakes" and it was NOT a large hazard. I understand that, if something had happened, they would have FELT partly responsible. But it's the kind of responsible that people with a lot of bumper stickers experience when someone wrecks because someone was paying too much attention to the stickers and not enough attention to the road.

Yes, they created conditions that might have made it possible for a lousy driver to wreck a car, but, no, they did not do anything inherently dangerous. A driver--ANY driver--is expected to be able to handle gently decelerating cars on the highway. They should also be able to pay attention despite big billboards, confusing traffic signs, and attractive people gallivanting on the sidewalks.

The average traffic jam is much more likely to cause an accident, but it typically doesn't and, when it does, we blame the driver that rear ends someone, not the masses of people who have actually stopped on the highway, often NOT gently.