The recent international swell of xenophobia, which the United States is actively promoting, is ethically disquieting and economically disastrous. No benefit can emerge from blocking the visas of qualified employees simply because they were born outside the U.S. Our own businesses will ultimately suffer. Many countries are now "enforcing" their borders, turning away refugees and deporting residents of foreign origin. It is a very distressing trend, and the United States should act as a role model to other nations, rather than joining this ugly wave of bigotry.