Travelers wearing face masks to protect against the spread of the coronavirus wait in line at the Hainan Airlines check-in counters at Beijing Capital International Airport in Beijing, Friday, March 6, 2020. Hainan Airlines' owner HNA Group, a debt-burdened Chinese airline operator that faced opposition in Washington to its attempt to buy a Wall Street hedge fund during a costly global acquisition spree, says its creditors have asked a court to declare the company bankrupt. (AP Photo/Mark Schiefelbein)