A man was dragged from his seat on a United Airlines flight by airport security officers. Footage taken by another passenger shows the officers forcibly removing the man and dragging him by his arms down the aisle and out of the plane. The man was pulled out because he refused to leave the flight to make room for United Airlines employees after airline personnel asked him to involuntarily exit the plane. The federal Transportation Department is investigating United Airlines to determine whether the company followed proper procedure in removing passengers from an overbooked flight. According