EN, sorry, but by personal experience I know some of your comments are incorrect.  I consult for an American based high tech manufacturing company.  State of the art high speed optical and electronic devices.  Over the past decade, 40 percent of its high tech manufacturing jobs have gone to China and 45 percent to another Asian country.  Now 90-odd percent of employment is off shore.  With a few exceptions, high tech manufacturing is indeed leaving.  Only a few companies like Intel who are desperate to prevent technology "leakage" keep a large share of production in the usa.  Out here in the trenches, one can really see what is happening.  Forget the political commentaries.  This country would be on its knees in months if China withheld shipments.