"What we don't want is a situation where parents are taking all the right steps at home, and then their kids undo all that work when they go to school with salty,fatty foods in the school cafeteria."
VOA: special.2010.06.07
"Justice" won't undo the fear embedded in the people who were closest to the blast.
Although manufacturers and experts are careful to point out that these systems can't undo every fool-hearty driving maneuver, they can, at least, prevent a slight misjudgement from becoming an automatic disaster.