Each year, more than 4,000 people die in large truck crashes. This shocking number of deaths is equivalent to all of the passengers in ten fully-loaded 747s. Yet we are largely immune to the carnage because of its chronic nature. Collision Avoidance Technology (CAT) systems have the proven potential to significantly reduce the number of large truck crashes and to save lives. The time has now arrived. CAT systems should be standard equipment on all large trucks.