Is North Korea preparing a teenage girl to become its next leader?

I want to bring in NBC News foreign correspondent Raph Sanchez to talk more about this. Hi Raph. >> Hey, thanks for having me.>> Kim Jer, 13 years of age, the only child of Kim Jong-uns that we've actually seen in public. What do we know about her. >> Not a lot, which is pretty shocking given that the world's intelligence agencies focus so much time, so much attention on figuring out what is going on in North Korea.Here's what we do know. We think that she is about 13 years old. So born roughly 2012.And it ...