JEFF GREENFIELD ANCHORS. Even as unemployment remains stubbornly high, millions of jobs remain unfilled because many workers do not have the necessary training to fill them. This week, Need to Know correspondent Rick Karr travels to the state of Washington to report on The National STEM Consortium - a program designed to target this type of structural unemployment by improving the scientific, technical and mathematical know-how of American workers. Anchor Jeff Greenfield interviews Seth Harris, the acting Secretary of Labor.