After seven years of litigation, two trips to a federal appeals court and $3.8 million worth of lawyer time, the public has finally learned why a wheelchair-bound Stanford University scholar was cuffed, detained and denied a flight from San Francisco to Hawaii: FBI human error.

FBI agent Kevin Kelley was investigating Muslims in the San Francisco Bay Area in 2004 when he checked the wrong box on a terrorism form, erroneously placing Rahinah Ibrahim on the no-fly list.

What happened next was the real shame.