Numerous tips have come in from across the country about possible clues to the whereabouts of the 9/11 flag that became a symbol of hope, CNN's Jason Carroll reports.
After an iconic photo was taken, the flag mysteriously went missing.
Now from firefighters in Colorado to a couple in California, people are measuring their flags against the original.
So far, all the leads are false, says Michael Tucker, director of the CNN Films documentary, "The Flag."
Tucker says, "If we find the flag, it would be terrific. And I think that people would, through that artifact, it would connect them to the past, and to those stories."
All credible leads will be vetted by the filmmakers and then turned over to yacht owners Shirley Dreifus and Spiros Kopoloucous, the only people who they say can tell what is real and what isn't.
The original flag the firefighters raised was from their boat docked near the trade towers and only they know of undisclosed markings that can help solve the mystery.
If you have information you can visit CNN.COM/THEFLAG or email at FINDTHEFLAG@CNN.COM.