In Arkansas, the Associated Press reported that three passengers locked themselves in a bathroom, and the other passengers departed from the plane safely.
Reading between the lines: Three passengers were somehow involved with a disruption during the flight, whether from themselves or other passengers is not clear, though. The crew tried to resolve the disruption but without resolution, so in the process of landing, the 3 locked themselves in the restroom to escape a lynch mob. The charge? Flying while Middle Easterner on September 11th? Time will tell, but this doesn't sound like a terrorist episode.