Melina Bellows, National Geographic Society’s Chief Education Officer, proclaims that she has the coolest job in the world. Listen in as she describes a typical day on the job at National Geographic at the inaugural X-STEM Symposium on April 24, 2014 in Washington, D.C. br The X-STEM Symposium is sponsored by MedImmune and the Northrop Grumman Foundation and is a program of the USA Science & Engineering Festival. br Lockheed Martin is the Founding and Presenting Host of the USA Science & Engineering Festival.