The September 11 attacks of 2001 found a revival in the chant during patriotic ceremonies at sporting events ; the chant was also heard when U.S. President George W. Bush visited the ruins at the World Trade Center site in the week following the 2001 attacks . Following the throwing of the first pitch during the 2001 World Series , the crowd chanted " U-S-A " , when the pitch was a strike
September 11 attacks
September 11 attacks
U-S-A!