Companies such as General Electric are pivoting away from offshore manufacturing and toward a revival of U.S. factories, Charles Fishman writes. Cheap Chinese labor hasn't delivered the broader economic advantages some firms had sought, and local manufacturing can allow companies to operate more nimbly and with increased quality control. "Jobs are coming back not for a single, simple reason, but for many intertwined reasons -- which means they won’t slip away again when one element of the business, or the economy, changes," Fishman argues.