This is What's Trending Today.Airline passengers around the world were upsetwhen videos of a man being dragged off a United Airlines flightcame out on Sunday night.The videos showed blood on the man's faceafter his confrontation with the police.The airplane was completely full,but four airline employees still needed to get on the flightfrom Chicago to Louisville, Kentucky.So, the airline asked passengers to give up their seats in return for moneyand the chance to take another flight the next day.It is a common practice for airlineswhen they do not have enough available seats on a flight.No one volunteered.So the airline said it would make a selection itself.Three people decided to leave the plane without a problemafter being told they had been chosen.But one man resisted.The newspaper in Louisville reported Tuesday his name is David Dao.Passengers say Dao told the airline crew he was a doctorand had patients to see on Monday.Dao is 69.He has been practicing medicine in the U.S. since the 1970s.Some passengers said Dao said he thought he was chosen to leave the planebecause he was Chinese.A different news report and another passengersaid the man was originally from Vietnam.Airline employees asked police to help remove the man from his seat.Videos of the incident quickly showed up on Twitter and Facebook.They showed Dao being dragged off the plane.Other videos recorded later showed him back on the planewith blood on his face, saying, "I want to go home."Eventually, Dao was removed from the plane and treated for his injuries.The flight was delayed for two hoursas all the passengers had to leave the plane and get back on.But as the news of the uncomfortable situation spread around the world,many people in China said they thought Dao had been chosen because he was Asian.The Chinese social media site Sina Weibowas filled with comments about the incident.The New York Times reports one story had almost 300 million viewsand over 150,000 comments.Readers said they thought the man was chosen because the airline thought,"Asian-Americans are always obedient."Other readers said the United States always challenges civil rights abuses in other countries.They wondered why United Airlines thought it could treat a passenger that way.Many others said Asian people should boycott United Airlines.United is one of the busiest U.S.-based airlines in Asia.There are almost 100 flights per week to China and Hong Kong.A boycott could cause financial problems for the airline.Joe Wong is a Chinese-American comedian who called for a boycott.He used Sina Weibo to write that many Chinese peopleare afraid to speak about discrimination.He said that keeps media and authoritiesfrom taking complaints of discrimination against Asians seriously.The Chinese website Global Times reported a popular social media post in Chinashowed a photo of a United Airlines airplane.The caption read: "If we cannot beat our competitors,we will beat our customers."And that's What's Trending Today.