Globalization

In the past 20-30 years, US has lost a great number of jobs. it can be explained by Globalization, moving of manufacturing jobs to Asia, even service jobs like Call Center to first India and now Phillipines. But the most important impact is the advancement of IT that provide significant productivity gains by organizations. So what do you think will happen to US in that sense as we move on in IT for the next 20 years?