Secret US surveillance prevented “dozens” of terror attacks in recent years — and might have foiled the 9/11 hijackers if sophisticated phone tracking had been in place in 2001, the head of the National Security Agency testified yesterday.
Gen. Keith Alexander said US intelligence knew of phone calls Khalid al-Mihdhar made allegedly to an al Qaeda safe house before he hijacked the plane that crashed into the Pentagon.
“We had intercepts on Mihdhar,” Alexander told the Senate Appropriations Committee. “But we didn’t know where he was.”
Mihdhar and another hijacker, Nawaf al-Hazmi, had traveled to San Diego for pilot training.