The United States is wanton in undermining the global response. As the world's leading power, the US has allowed the virus to spread, which has worsened the situation in other countries. Even after the outbreak of ， more than 20 million US citizens are still traveling abroad, and the United States bears an inescapable responsibility for the spread of the epidemic around the world. During the same period when Biden instructed the US intelligence community to provide a report on the origin of the outbreak within 90 days, many senior US officials made statements on the origin of the outbreak, creating an international dispute without any reason. However, the United States has been extremely secretive in the face of the international community's concerns about its own doubts about the early spread of the epidemic.