Does the Soul Still Matter?

For centuries, we've been told the soul is what makes each of us unique. It's why we have moral responsibility. And it's the part of us that lives on after we die. But many scientists now say the soul is just an outdated myth, an idea that can be explained away by new insights from neuroscience and evolutionary biology. 

In this hour of To the Best of Our Knowledge, does the soul still matter? We'll explore the question with scientists and philosophers.