Well, what I'm saying is that there is an agency.... Actually, when I was in North Korea we were brainwashed. There are so many North Korean people in South Korea because we want to make a unification in a North Korean way. We learned that and then we brought that thought to South Korea.
Also, some of the North Korean defectors return to North Korea and appear on TV criticizing South Korea, and some of them share information on other North Korean refugees in South Korea. Also, many North Korean refugees in South Korea who have relationships with people who return to North Korea change their names. They change their social security numbers. They move to another city and they even leave the country. That happens right now in South Korea.