I'm certainly biased (as we all are), but there are very simple ground truths in this discussion. The biggest statistical killers are motorized vehicles. They a

I'm certainly biased (as we all are), but there are very simple ground truths in this discussion. The biggest statistical killers are motorized vehicles. They are the overwhelming factor in any kind of car-on-X collision. This is a directly intuitive result of their weight and power. As such, any policy must concentrate on the risk that radiates from them if it wants to be effective in controlling injuries and fatalities.