I did a search but found nothing so my apologies if this has already been discussed. The infamous Phoenix Memo was sent July 10, 2001 to FBI HQ and the Anti-Terrorism unit in NYC then headed by John O'Neill. A few articles indicated that
"In New York, where there is an FBI international terrorism squad, three agents saw the Phoenix memo, but told the inquiry that Middle Eastern men frequently took U.S. flight training because it was considered best for quality and price"
Thus possibly more agents in NYC saw it but not all were called to testify before the Joint Congressional Inquiry and obviously their then boss was unavailable but presumably had seen it as well.
"In New York, where there is an FBI international terrorism squad, three agents saw the Phoenix memo, but told the inquiry that Middle Eastern men frequently took U.S. flight training because it was considered best for quality and price"
Thus possibly more agents in NYC saw it but not all were called to testify before the Joint Congressional Inquiry and obviously their then boss was unavailable but presumably had seen it as well.