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Athit Perawongmetha/Reuters
KUALA LUMPUR, Malaysia — Malaysia moved to punish North Korea on Thursday for the airport assassination of Kim Jong-nam, the half brother of the North’s leader, saying that it would require visitors from that country to obtain a visa, the Bernama news agency reported.
Ahmad Zahid Hamidi, the deputy prime minister, imposed the restrictions effective Monday, citing national security concerns. Until now, North Koreans have been able to…