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jason kilar was put in to take over warner media recently as well he has that squared away in terms of leadership. >> david, thanks for that. david faber on stephenson and stankey. that succession at at&t. getting breaking coronavirus news good morning, sue. >> good morning, carl. this concerns a study done and published just now by the journal of the american medical association and basically what it is saying is that the treatment of covid-19 by hydroxychloroquine and chloroquine should only be done in a hospital setting. the study that was done basically has raised some questions about the efficacy of the use of one or more or the combination of those drugs this has triggered -- basically it was a bad outcome the primary outcome in many patients is death. that triggered an fda response saying do not use hydroxychloroquine or chloroquine for covid-19 use outside of a hospital setting. they have been shown not to be effective for treating or preventing covid-19. hydroxychloroquine and chloroquine can cause abnormal heart rhythms such as qt interval pro longation, measured on an ekg, m