world trade center in the shadow of it. this is supposed to be one of the safest places in the world. it raises questions what does safe even mean anymore? we spoke to someone who literally had this vehicle bearing down on him. his name is christian wagner. here's what he had to say. >> christian, i'm glad you're okay. >> thank you. >> so we were talking about the long life that you've had from amsterdam to california. now you're here in new york. how did you find yourself on this path? >> i was moving apartments and i needed to get a computer display, another one for my job at home. >> so you were just taking a stroll. >> taking a stroll, beautiful fall day. walking down chandler avenue. school is he letting out. i'm surrounded by kid, working