hit the pentagon, a fourth hit this field. she assumes there's some secret government facility under this field that she doesn't know about, that this must be one of the most important targets in the entire country. so she assumes like the twin towers there are more hijacked planes coming. you talk about the fear, trauma of the day, it makes an incredible amount of sense. if you only know what she knows during the 10:00 a.m. hour, you think that this field, this abandoned coal mine in somerset county is one of the most important places in the world. >> makes perfect sense, doesn't sound crazy, especially if you know so little as so many of us did. had no idea where it was coming from, what was next. kaitlan collins joins me to talk about the president's trip to the memorial. this memorial is decades in the making, but i understand going