The U.S. Federal Retirement Thrift Investment Board this week dropped Chinese and Hong Kong companies from its international index fund in part because of recent investment restrictions and export bans on U.S. technology to China. The House China Select Committee on the Chinese Communist Party and other members of Congress have been calling for the FRTIB to make the change, even proposing legislation that would ban the TSP from investing in Chinese companies. Select committee ranking member Raja Krishnamoorthi (D-IL)...