In a matter of days, Jang Song Thaek went from being one of North Korea's most powerful officials to being publicly denounced as "human scum" and then, according to North Korean state-run media, being put to death.
Yeonmi Park fled North Korea when she was 14. She risked her life, crossed three mountains and a frozen lake to get to China and eventually to South Korea. Now she says she wants to raise awareness about the people she left behind.
North Korean leader Kim Jong-Un finally made another public appearance on Monday, or so the country's state media claims. But no matter what, his disappearance — and reemergence — didn't seem to have much of an effect in North Korea itself.
Anchor Lisa Mullins speaks with the BBC's John Sudworth, who witnessed today's historic performance by the New York Philharmonic Orchestra in Pyongyang, North Korea; Lisa also speaks with British soprano Suzannah Clark