United Airlines has said it is changing its policy on booking its own flight crew on to its planes.

The bloody incident has caused outrage and a boycott against United Airlines. Passengers were selected at random to be bumped from the flight when there were no volunteers.

United initially said that Dao's flight, from Chicago's O'Hare International Airport to Louisville, Kentucky, was overbooked, and its staff picked passengers to be bumped. Dao suffered a concussion and a broken nose, and will undergo reconstructive surgery after losing two front teeth, Demetrio said. But no one volunteered, so the airline chose the passengers.

United said on Friday it has to craft policies to win back customer trust.

The statement also pointed out that the plane from which Dr. Dao was ejected was one of which that was separately owned and operated by Republic Airlines. Like a police officer telling you to keep your hands in full view, or when and how to step from your auto, passengers of any form of travel - when told to leave or move - should comply, especially in today's highly charged environment of airport security. According to video taken by passengers, Dao was repeatedly asked to get off the aircraft by law enforcement and told them they would have to drag him off the aircraft.

The department's roughly 300 officers guard the city's two main airports but are not part of the regular Chicago police force, receive less training and can not carry guns inside the terminals.

This information comes after the United Airline's pilots union released a statement Thursday regarding the Sunday night incident.

Like you, I continue to be disturbed by what happened on this flight and I deeply apologize to the customer forcibly removed and to all the customers aboard. Later, Munoz offered a more emphatic mea culpa, saying: "No one should ever be mistreated this way".

It's never too late to do the right thing.

United said it was this policy that employees were following when Dao was removed, despite the fact that he was already on the plane.

Other airlines have not said whether they will increase their compensation limits to displaced passengers. The company said it is conducting a full review, and it will announce the results by April 30.