North Korea warned Sunday that the United States will encounter a "very grave situation," after President Joe Biden called the Asian nuclear-armed country a "serious threat" in his first speech to Congress since taking office in January.North Korean leader Kim Jong Un's younger sister and close aide, Kim Yo Jong, also issued a statement criticizing the recent launch of balloons carrying anti-Pyongyang leaflets by a group of defectors from the nation in South Korea.Biden "made a big blunder," Kwon Jong Gun, director general of the Department of U.S. Affairs of North Korea's Foreign Ministry,…READ FULL ARTICLE
