Friday marks 25 years since 9/11. It was a watershed moment for the U.S. and the world. It changed how we approached the world, flying, security, patriotism and society in general.Journalists, an aviation executive, a robotics rescue expert, a college professor — and several deeply affected callers — share their experiences from the day and describe what has changed for them since.Follow us on social media:Facebook: https://www.facebook.com/WUSFInstagram: https://www.instagram.com/wusfpublicmedia/YouTube: https://www.youtube.com/channel/UCsN1ZItTKcJ4AGsBIni3