I don't understand why everybody is so against the authority.
It is the blunder madeby the parents of those kind and they are to blame and not the authorities. Immigration authority was doing its job. Being so educated and professional parents they should have checked Visa requirements before bringing their kinds to a FOREIGN COUNTRY (indeed for their kids).
How they FORGOT to bring necessary visa documents.
They must be out of their mind and I think this is a good lesson for all flying around without necessary attention to the required papaers.
