The United States is losing its place as the global leader in high-tech innovation and manufacturing, say many business and Obama administration officials. They point to a steady decline in manufacturing's share of the U.S. economy — and the corresponding erosion of a key source of well-paying jobs. Most worrisome, they say, is the outsourcing of key high-tech products, including certain semiconductors, screens for some electronic reading devices and batteries for portable electronics. Defenders of globalized manufacturing argue that U.S.-based inventors and engineers devised most of those outsourced products and that high-end manufacturing will survive in the United States even if more factories are built abroad. Yet, both advocates and critics of globalization agree that young Americans aren't getting the training needed to keep the United States competitive in the high-tech arena.