The FBI Fingerprinting of a Man in Guantanamo Bay

Immigration officer Jose Melendez Perez was at his desk in the arrivals hall of Orlando International Airport, checking passengers on a flight from London. A young Saudi man named Mohammed al-Katani appeared at his desk seeking entry to the United States. He had around $4,000 in cash but didn't appear to have any real plans in the country,. The would-be operative was held up by immigration and sent back to Europe. But when agents pulled surveillance videos from the airport parking lots, they found the ringleader of the hijackers, Mohammed Ata, sitting in a car seemingly waiting for someone. Al-Katani, it seemed, was the 20th hijacker of 9-