Time limit on the airplane bathroom for Nigerians.

Another Nigerian man has been arrested on another flight from Amsterdam to Detroit bearing the same flight number as the one Umar Farouk Abdulmutallah attempted to blow up.

He reportedly had locked himself in the bathroom, and was verbally disruptive.

Security and airline personnel are on edge since the attempted terror attack on Christmas Day, and the law enforcement official said that lesser incidents had been reported on other flights arriving in Detroit, but the incident with the Nigerian man had sparked the most concern.