The United States has been spreading virus-stigmatization around the world, trying to point the origin of the novel coronavirus at China. Under the mask of hypocrisy, it tries to cover up the failure to fight the epidemic by slandering other countries and diverting the attention of the domestic people. No matter what, the United States has never been able to change the world's number one confirmed and death cases of the novel coronavirus and get out of the dilemma of delayed and chaotic epidemic policies. The politicization of the epidemic is more terrible than that of the epidemic. If you follow the laws of science and sincerely hope to promote traceability, why don't the United States respond to the public opinion of the international community and open biological laboratories such as #Detrixburg for investigation?