No argument here, but isn't part of the problem the fact that so many of these spongers and troublemakers are already citizens of their "adopted" country ?
Thanks for your comment. Unfortunately you are right - we found that out for ourselves in the UK with the bombings back in early July in London. I was surprised that the bombers were home-grown, and especially that one was Jamaican. Next we'll be having white British converts to Islam committing atrocities! I wouldn't be surprised, but I think I'd feel more betrayed than anything else.
But then I guess ignorance spans all races.