I guess we have different definitions of vigorous debate. Politicians should not be the only mediators of debate within our society. Where is the science? Where are the non-industry funded studies? You can't have a truly vigorous debate when science is left out of it. The conversation is so overly political and politicians know exactly how appeal to their voters' emotions that reason and rationality is completely left out. Sure, we talk about it, but we don't talk about it the right way.