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.
The last time North Korea had a transition of power, people in the South feared the outbreak of war. Now they're taking it in stride. And as Jason Strother reports, some see the change as an opportunity for South Korean business.
North Korea on Wednesday announced it's suspending its nuclear activities and missile tests in a breakthrough in negotiations with Washington. Lisa Mullins speaks with Stephen Bosworth, the former US special representative for North Korea Policy.