On Sept. 11, 2001, passengers watched television screens in horror as the news came in from New York. Many travelers missed flights as planes were grounded across the U.S. in response to the attacks while it was still unclear what had happened. Watch more The Story videos: http://bit.ly/watchTheStory Follow The Story on Twitter: https://twitter.com/TheStoryKGW Follow The Story on Instagram: https://instagram.com/thestorykgw