Little is known about their secret service. They managed to get rid of the Russian advisors and the Chinese control. They belong to the most 'successful' services in controlling people. The windows were to be free, doors weren't allowed to be locked. Some achievements were done in the rocket and nuclear research, although their tunnels have been revealed. They founded a net in
Japan, which was strongly supported by the Korean minority living there (about 2 mil.) They hijacked the ship Pueblo (NSA surveillance ship) and applied brainwashing a lot.
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