Other potential sightings came at Missouri 's Fort Leonard Wood ; NASA 's Johnson Space Center in Houston ; the Escondido , California , Elks Lodge ; and the hair and makeup department of the New York New York Hotel & Casino in Las Vegas . The flag that was the subject of an iconic 9/11 photo went missing after it was hoisted . Tips roll in after CNN Films ' ' ` ` The Flag '' airs , but none deemed viable . Possible sighting have come in Las Vegas , Houston , West Point and Oskaloosa , Iowa . Co - director says , ` ` It 's more than looking for a flag . It about looking for that feeling ''
The flag that was the subject of an iconic 9/11 photo went missing after it was hoisted . Tips roll in after CNN Films ' ' ` ` The Flag '' airs , but none deemed viable . Possible sighting have come in Las Vegas , Houston , West Point and Oskaloosa , Iowa . Co - director says , ` ` It 's more than looking for a flag . It about looking for that feeling ''