In a correction to an earlier report, CNN.com reports that the FBI has cleared of suspicion a man originally thought to have piloted one of the four hijacked airliners based (at least in part) on a passed polygraph “test”:
CORRECTION
We would like to correct a report that appeared on CNN. Based on information from multiple law enforcement sources, CNN reported that Adnan Bukhari and Ameer Bukhari of Vero Beach Florida, were suspected to be two of the pilots who crashed planes into the World Trade Center. CNN later learned that Adnan Bukhari is still in Florida, where he was questioned by the FBI. We are sorry for the misinformation. A federal law enforcement source now tells CNN that Bukhari passed an FBI polygraph and is not considered a suspect. Through his attorney, Bukhari says that he is helping authorities. Ameer Bukhari died in a small plane crash last year.
Because polygraph testing has no scientific basis, has an inherent bias against the truthful and yet is easily defeated through the use of simple countermeasures that polygraphers cannot detect, it should never be used to include or exclude a person as a suspect in a criminal investigation.