The question is if we want to accept the risks. In the early days of subways, trains, planes and cars, accidents were frequent and many people died until we fig

The question is if we want to accept the risks. In the early days of subways, trains, planes and cars, accidents were frequent and many people died until we figured out the safety aspect. Today's society is much more risk averse. I don't think the general public would accept several fatal crashes before the system is safe.