Six months before Neil Armstrong set foot on the Moon, the U.S. Space Program claimed victory over the Russians. The winning mission was Apollo 8, the first time a manned space craft orbited the moon. The mission was so risky even the NASA Flight director believed the astronauts only had a 50% chance of returning safely to earth. On The Point, Mindy Todd interviews Martin Sandler about his new book Apollo 8- The Mission that Changed Everything.