| To those worried about America's ability to compete in the 21st century, the trend is alarming: Just as key manufacturing industries fled offshore in the 1970s and '80s, U.S. companies are now shifting more engineering and design work to low-cost nations such as China, India and Russia. Surely, innovation itself must follow. Apparently not, according to a new study published by the National Academies, the Washington organization that advises the U.S. government on science and technology policy |