CBS News recently spoke to a group of so-called Flat Earthers who believe that the scientific community has pulled off a great hoax by claiming that the world is in the shape of a globe. In a segment that aired on CBS Sunday Morning, reporter Brook Silva-Braga interviewed a group of people who are trying to prove that the world is flat and that a wall of ice around the perimeter is containing all of the sea water. "Probably most people who hear about it will laugh at it, think we're idiots," Flat Earth believer Patricia Steere told CBS News.