As students go back to school, CBS News' Mo Rocca explores that classic writing instrument: the pencil. He introduces us to David Rees, who has written the book on sharpening pencils, and brings us to Pencil City USA to learn how pencils are made.
;
Have any comments or questions about our video editions of IMPO? Or do you have a video you'd like to see featured in one of our deployments? Email me at [email protected].