U.S., Russian diplomats discuss N. Korea's denuclearization ahead of Vietnam summit

The U.S. Special Envoy for North Korea Mark Lambert is in Russia to discuss the North's denuclearization ahead of the second Kim-Trump summit.The State Department told VOA that Lambert headed to Moscow on Monday.During the two-day visit, he's to meet with Russian officials and North Korean experts, as part of diplomatic efforts to achieve the North's final, fully verified denuclearization.According to Tass, the U.S. envoy had "frank and constructive" talks with the Russian Foreign Ministry's Ambassador-at-Large Oleg Burmistrov,... and Deputy Foreign Minister Igor Morgulov.