Much of what we've learned over the past half-century about the ancient Egyptians, we've learned from these two archaeologists. They've both made major discoveries and have played a crucial role in protecting the pyramids and burial sites for future generations. Zahi Hawass is a National Geographic explorer, and once oversaw all of antiquities Egyptian government. But beyond that, he has drawn millions of tourists to visit Egypt, with his many books and television documentaries.  He wears a signature hat, and is famous for his outsized personality.  Kent Weeks is a more professorial type.  He is retired now, but for 60 years lived and breathed the life of the Pharaohs.  He created what many consider the most important preservation effort ever undertaken in Egypt: The Theban Mapping Project.  It catalogued every tomb and every shard of pottery unearthed in The Valley of the Kings.  We hear just what motivated each of them to spend their lives unearthing the secrets of a 5,000 year old civilization.