BY DAVID WESSEL

Manufacturing alone isn't going to put America back to work.

Recent news from the nation's factories has been good. In the past two years, manufacturing employment has grown by 334,000, a welcome upturn in a nation short of jobs.

This has kicked off a mini-euphoria. Every time a big global manufacturer opens or expands a plant in the U.S., someone casts it as a sign of a manufacturing renaissance. A sampling of headlines in the past few days captures the joy: "Rust Belt sees job gains on a revival of manufacturing, " says one. "Manufacturing and construction lift outlook on ...