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<However, to accomplish these objectives, we would need a relatively fast and reliable method to determine who is a terrorist and who is not. Fortunately, there is a technology that is applicable to this task. This technique, which has been known as brain fingerprinting but we shall refer to as "computerized knowledge assessment" (CKA), was invented over 10 years ago by Dr. Larry Farwell, a former faculty member of the Harvard Medical School. It has proven infallible in tests by the FBI and US Navy. Unlike lie detector tests which can be fooled, brain responses cannot be faked. For this reason, brain fingerprint evidence has been ruled admissible in US courts where it has been used both to exonerate and convict.