Public health experts are questioning the U.S. government's response to the hantavirus outbreak aboard a cruise ship that involves Americans. But President Donald Trump says “we seem to have things under very good control.” Nonetheless, several experts and former government health officials say the response by the Centers for Disease Control and Prevention has been feeble compared with how it dealt with similar outbreaks in the past. They say the CDC’s diminished role in the hantavirus outbreak is an indicator that the agency is no longer the force in international health or the protector of domestic health that it once was.