'Front runner' to be North Korea's next supreme leader makes international debut in China

• Kim Jong Un's daughter seen as potential successor
• Ju Ae gains protocol experience on first overseas trip
• South Korean intelligence sees Ju Ae as likely successor

SEOUL, Sept 3 (Reuters) - North Korean leader Kim Jong Un brought his teenage daughter to Beijing this week in her first public outing overseas, fuelling further speculation that she may be his potential successor in the family's dynastic rule over the nuclear-armed state.

Secretive North Korea has never revealed her name or age, but South Korean intelligence officials believe she is the daughter identified as Ju Ae by former American basketball player Dennis Rodman