Can North Korea immigrate?

Koreans can immigrate if they have money! Senior officials go abroad to see the effect. If they visit abroad for international exchange, if they stay abroad and don't come back, they will still become illegal immigrants in that country. If they are caught, they need to be repatriated. There will also be corresponding sanctions in North Korea. Once repatriated carelessly, this senior official is likely to become a political prisoner (because he is a senior official)!