After the first presidential debate, which gave Romney a four-point bounce, nobody is doubting the debates' importance. But as we ready for tonight's round two, I'm wondering: What exactly are the debates teaching us about the candidates? As they're presently constituted, they don't give an accurate idea of what a candidate might be like as a president. Take the prohibition on notes -- when is a sitting president ever going to be faced with a situation in which he's going to need to make an important decision without availing himself of any outside information? It's fun to see how a candidate responds to a zinger, but it'd be much more instructive to see how a candidate goes about seeking information that he doesn't know. So what about at least one debate that is structured to resemble the decision-making process a president would actually go through in office?