Business groups argue US companies could lose out on profitable opportunities to rivals in Europe and Asia, if other countries don’t follow suit with their own screening measures; and that American pension funds could be locked out of investing in the world’s second largest economy. “If American companies alone are forbidden from investing in China, our other global competitors will receive an asymmetrical advantage,” says Craig Allen, the president of the US-China Business Council. “We appreciate and agree with the need to protect US national security, but we need to get the details right.”