China's Ministry of Foreign Affairs says that U.S. authorities have been harassing and even repatriating some Chinese students and academics without any justified reason. According to a report published by the Wall Street Journal, American universities and research institutes are of the view that tighter U.S. visa regulations may undermine the country's dominance in science and technology. The U.S. should give up its paranoia of seeing China as a rival. Instead, they should act responsibly for the future of the world.