You remember the Ralls wind farm case, yes? The deal involving Chinese investors, backed by Chinese firm Sany, and several U.S. wind farms, one of which happened to be near a navy base. Because of national security concerns, the Committee on Foreign Investment in the U.S. (CFIUS) forced Ralls to divest itself of certain assets; [...]

The president scotched a wind farm acquisition by Chinese investors. Hard to see any useful lessons to be learned here.