Kim Yo Jong, the sister of North Korean leader Kim Jong Un, has said North Korea will never abandon its status as a nuclear-armed state and warned that it will not tolerate what it views as external threats, according to state media outlet KCNA. Her comments come ahead of Chinese President Xi Jinping's visit to North Korea - his first in nearly seven years - as Beijing seeks to strengthen ties with Pyongyang, its only formal treaty ally. Kim Yo Jong, who holds senior positions within the North