- Three firefighters raised the US flag on 9/11
- Flag disappeared shortly after it was raised
- Flag mysteriously reappears, will be displayed at museum
(CNN)On September 11, 2001, amid the burning ashes of the World Trade Center, three New York City firefighters hoisted a small American flag removed from a nearby yacht. It was 5 p.m. on a day that would radically change the course of history.