Journalist Sebastian Junger had nearly died when reporting from war zones around the world, but nothing prepared him for the ruptured aneurysm that almost killed him. He's now trying to explain a mysterious encounter he had with his dead father.

Scientists are revolutionizing our understanding of life and death. It’s now possible to revive patients hours after they’ve been declared clinically dead. Dr. Sam Parnia talks about these advances and the new science of near-death experiences.