Graham Hancock, formerly a foreign correspondent for "The Economist," has been an international bestselling author for more than 30 years with a series of books, notably "Fingerprints of the Gods," "Magicians of the Gods" and "America Before," which investigate the controversial possibility of a lost civilization of the Ice Age destroyed in a global cataclysm some 12,000 years ago. Graham is the presenter of the hit Netflix documentary series "Ancient Apocalypse." Flint Dibble is an archaeologist at Cardiff University who has conducted field work and laboratory analyses around the Mediterranean region from Stone Age caves to Egyptian tombs to Greek and Roman cities. Flint enjoys sharing archaeology - from the nitty gritty to the grand - with people around the world. Subscribe to his YouTube channel, "Archaeology with Flint Dibble," or follow him on X/Twitter for behind-the-scenes deep dives into 21st century archaeology.