I think the US did something about this to the Chinese when they came here as well...-_-; Whats the big deal here?
However that does create unity where North Korea has very little of...it is after all a very active Communist country...at least to my knowledge. Not to say its bad, but they are just looking out for their ideals just like how the Whites did the Chinese or how some ppl did to the slaves during the Civil War..
