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The situation has become familiar with the covid-19 epidemics, and in particular with the controversy over the use of chloroquine: everyone has an opinion and groups are being formed in favor or against it. Yet regularly, people are being called to order by others who demand that only experts should be allowed to talk on issues relating to the management of the epidemy. The message seems to have been heard: for the past three weeks, doctors have been massively present on television sets. The country has become a large proxy medical consultation room. But the question remains: faced with a complex and unprecedented situation such as the coronavirus, who has the right to speak out? To what extent can experts be trusted? More importantly, how can the decision-maker work with them?