I understand but I noticed some are well educated and indeed could help the society. Not all are bad,but maybe with border control rather than close the door.....terrorists can be anyone,any colour and at any places. Some claim that there are many yang men in the migration and it is a threat to EU,...if you are the parents,you would ask those yang to leave their home land in the hope that they could survive rather than being there and get killed by chemical weapon or bombs...somehow mix-feeling,it is not easy to any European .