沃尔夫条款

It’s a rare moment of consensus for two space agencies competing to land astronauts on the moon and build a base near the lunar south pole. But US access to the samples  may be stymied by a 2011 law known as the Wolf Amendment, which prohibits the use of government funds by NASA for bilateral cooperation with China or its agencies without authorization from Congress or the Federal Bureau of Investigation, effectively banning the space agency from routinely working with its Chinese counterpart