Infection rates broke records across the United States over the holiday weekend, with many of the most severe surges in areas that reopened fastest. One thing that seems to have played a factor: transmission indoors, such as in restaurants and bars. We break down the risk, and look at what else scientists have learned about the coronavirus and how it spreads. Guest: Donald G. McNeil Jr., a science and health reporter for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily  Background reading: Many scientists have been saying for months that the coronavirus lingers in the air indoors, infecting those nearby. But the World Health Organization has been slow to agree.Black and Latino residents of the United States are nearly twice as likely to die from Covid-19 as their white neighbors, according to new data that provides the most comprehensive look yet at coronavirus patients in America.