A plane has been delayed at Los Angeles LAX airport after a passenger reported a local WiFi network named "Al-Quida Free Terror Nettwork".
The public WiFi signal was seen by a passenger on an American Airlines flight to London Heathrow, who then notified the police.
An investigation followed, which the BBC reports "lasted several hours", but eventually it was found that no crime was committed.
The WiFi signal was presumably created as a joke - or as a crude way to deter other people from using it.
But airports are understandably touchy about security, and took the 'threat' seriously.
The advice? Don't name your WiFi network at a major international network after a terrorist organisation, and don't try to join one either.