Why is everybody going down the prejudice road here? As I see it, the passengers were behaving in an unacceptable manner, and not following the instructions of the cabin crew. We can't talk about language difficulties either, because it seems two of them were Swedish nationals. If the captain is going to assume full responsibility for the safety of the flight, then he also has the authority to ensure that safety, i.e. ensuring potentially disruptive passengers do not remain on board. If there had been an incident (not necessarily terrorist related) after take-off, who would have said "not your fault captain, you were right to allow those people to travel"? Unless there is something we do not know in this case, I hope the pilot's unions, not just in Scandinavia but across the EU, back the captain.