More than 100 rescuers are taking part in an operation to save American cave explorer Mark Dickey, who became severely ill while exploring the Morca Cave, which descends 4,186 feet below the surface in Turkey. Dickey, who is now in stable condition, says he was “very close to the end." Dr. Corey Hebert joins NewsNation Now to give insight on the rescue mission. #Caver #Turkey #RescueOperation Watch #NewsNationNow: newsnationnow.com/joinus "NewsNation Now" is a no fluff, no filler newscast hosted by Nichole Berlie featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekdays starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij