A passenger is dragged from his seat on a United Airlines flight.
원문출처 : http://www.cnn.com/2017/05/10/aviation/jd-power-north-american-airline-survey-2017/index.html
원문출처 : http://www.cnn.com/2017/05/10/aviation/jd-power-north-american-airline-survey-2017/index.html