Joe Nocera visits two plants built by Gray Construction in N. Carolina. One is a Siemens plant in Charlotte, N.C., and the other is a Caterpillar plant in Winston-Salem. Both towns have community colleges that stress manufacturing skills. Forsyth Tech created a program working with Caterpillar to train its graduates in machining skills needed at the plant. The Caterpillar plant is huge at 850,000 square feet, and makes axles for mining trucks. The Siemens plant will make 280 ton gas turbines. Siemen's manager Richard Voorberg, tells Nocera the labor cost difference is not that much of a factor in highly skilled work, with shipping costs, and other efficiencies being more significant. Gray's backlog of 22 projects suggests a similiar conclusion. The problem is that the number of skilled workers needed in an highly automated plant with complex robotics is small. Caterpillar's plant will need about 500 workers, and the Siemens plant will need about 800 workers. This makes only a small dent in the enormous job losses of the last decade. And in N. Carolina the jobs lost in the furniture industry as the industry moved to China. Dow Chemical CEO, Andrew Liveris, points to the jobs created in the supply chain for every manufacturing job. And Ford Motor Company CEO, Mullaly, points to the innovation required in state of the art manufacturing, that creates sustainable advantage. The process of creating enough manufacturing jobs will take a long time, including shifts to new technologies and new products....