We’ve previously pointed out that the U.S. government heard the 9/11 plans from the hijackers’ own mouth. Most of what we wrote about involved the NSA and other intelligence services tapping top Al Qaeda operatives’ phone calls outside the U.S.
However, as leading NSA expert James Bamford - the Washington Investigative Producer for ABC’s World News Tonight with Peter Jennings for almost a decade, winner of a number of journalism awards for coverage national security issues, whose articles have appeared in dozens of publications, including cover stories for the New York Times Magazine, Washington Post Magazine, and the Los Angeles Times Magazine, and the only author to write any books (he wrote 3) on the NSA – reports, the NSA was also tapping the hijackers’ phone calls inside the U.S.
Specifically, hijackers Khalid al-Mihdhar and Nawaf al-Hazmi lived in San Diego, California, for 2 years before 9/11. Numerous phone calls between al-Mihdhar and Nawaf al-Hazmi in San Diego and a high-level Al Qaeda operations base in Yemen were made in those 2 years.
The NSA had been tapping and eavesdropping on all calls made from that Yemen phone for years. So NSA recorded all of these phone calls.
Indeed, the CIA knew as far back as 1999 that al-Mihdhar was coming to the U.S. Specifically, in 1999, CIA operatives tailing al-Mihdha in Kuala Lumpur, Malaysia, obtained a copy of his passport. It contained visas for both Malaysia and the U.S., so they knew it was likely he would go from Kuala Lumpur to America.