Former U.N. Ambassador Christopher Hill on the Korea crisis
On Tuesday, U.N. Secretary General Ban Ki-moon warned that the crisis on the Korean peninsula may become "uncontrollable." Christopher Hill, former U.S. ambassador to South Korea and current dean of the Josef Korbel School of International Studies at the University of Denver, explains what's behind the current crisis. Hill, who headed six-party talks on North Korea's nuclear program, this week called North Korean leader Kim Jong-un "one of the more pathetic examples of a leader I've ever seen." (Photo: AP Images).