Craig and Original Sin

This week I had the chance to listed to Dr. William Lane Craig's newest Defenders podcast on Biblical anthropology. After listen to it I was stunned to hear, however, Dr. Craig's openness to abandoning or significantly rethinking original sin. He did though trace some of the severe implications of Pelegianism. But I do not think he gave attention to the scriptural support, and rich history behind the doctrine of original sin with its theological battles through out church history. 

I understand though Dr. Craig, to his credit, has not ventured into the study of sin yet. I just thought he should be clear that Original Sin is something Christians should hold too.