Less than 1 percent of the artifacts at the Smithsonian Institution are on public display. But 3-D printing could help the agency send millions more artifacts to museums and schools around the world. Gunter Waibel is director of the Digitization Program Office, and Adam Metallo is 3-D Program Officer of the Smithsonian Institution. They’re both Service to America medal finalists in the Citizen Services category, and explained their pioneering work on In Depth with Francis Rose. View a gallery of all the Sammies finalists.