Craig Spencer, a public health professor and emergency medicine physician at Brown University, is warning that President Donald Trump and his administration are poised to leave the United States a haven for disease. Writing in The Atlantic, Spencer argues that Trump and his ally Elon Musk have "actively dismantled the infrastructure the country relies on to detect and confront deadly pathogens," and adds that "we are sure to regret it." Spencer points to several key decisions made by the administration that are particularly alarming: The dismantlement of the United States Agency for International Development, the withdrawal of the U.S. from the World Health Organization, and the decision to clamp down on public communications from the Centers for Disease Control.