Watch Casey Anthony's Parents: The Lie Detector Test

In response to Casey Anthony's recent accusations against her father, George and Cindy Anthony agree to undergo polygraph tests on-camera to answer lingering questions about George's involvement in Caylee's death. Their real-time responses to the polygraph questions are laid bare in the documentary along with each spouse's reaction to the other's answers and the lie detector results. As old wounds are ripped open again, will the polygraph tests finally bring closure?