'China must be prepared to TOPPLE Kim Jong-un or WE'LL do it', former US chief claims CHINA must be prepared to destabilise North Korea and unseat Kim Jong-un – or face the consequences of American intervention, a former US foreign policy chief has claimed. By VINCENT WOOD 01:10, Mon, May 8, 2017 | UPDATED: 02:16, Mon, May 8, 2017 Condoleezza Rice, who served as Secretary of State during George W. Bush’s administration, claimed China were too concerned about causing the “collapse” of dictator Kim Jong-un. Ms Rice claimed Beijing must be prepared for “instability on their border” as the US...