i'm jeff probst from "survivor" sitting in for larry. tonight we're talking about survivors in a different context. medicine and technology are bringing people back from death. there are those who have died but have lived to share their experience. you'll hear from some of those and about some of those stories later in the hour. according to the near death experience research foundation, yes, there is one, nearly 800 near-death experiences happened every single day in the u.s. alone. joining us to talk about it is dr. sanjay gupta, cnn chief medical correspondent and author of "cheating death, the doctors and medical miracles saving lives against all odds." also dr. deepak chopra. medical doctor, spiritual teacher, author of "life after death." and dinesh d'souza author of "life after death the evidence." sanjay, in your book you talk about the idea what we used to think of as the lines between life and death, this black and white thing is changing. >> yeah. i mean, we had this sort of conventional wisdom that it's a binary thing. one mo