Without denying the fact there is a exodus of people who are escaping hardship and who knows what else........bad no doubt.
I would like to know where she got her figures or the rather broad statement from.
I can go back to before WW2 to WW1 and show some evidence of this type of exodus from the eyes of a certain Rahpael Lemkin, he was the one who invented the word "genocide". A polish jew who took to heart what different nations were doing to minority or even rather large communities who had lived in their countries for decades, until some new autocratic government decided to either kill them off of move them on, preferably helping the to die along the way.............Read also Susan Powers, A problem from Hell.
What we have is a global communication system, and although some countries severely curtail full disclosure, it is virtually impossible for complete black out of information. Perhaps North Korea is one of those places that practice such silence, followed by it's bordering neighbours China and further on Russia.........This is not a first time event. It is what has been going on since the beginning of human history.....