Russian broker network recruiting North Korean labourers using student visas, Global Rights Compliance report says. A new report reveals the plight of North Korean workers at a drone factory in Russia. It also raised concerns that Pyongyang could gain hands-on knowledge of advanced weapons systems through. CRINK deepens as North Korea aids Russias drone production, raising Korea threat Report details forced labor and drone know-how transfer as CRINK network expands from Russias.