Kim Jong Il

Pyongyang carried out its largest nuclear test ever last week.
Meet the scientists at the frontline of Kim Jong Un's nuclear ambitions
Pyongyang's nuclear progress slowed significantly during times of diplomacy and accelerated during times of threats.
If he treads carefully and follows these steps, he may be the U.S. president to turn the tables on this conflict.
CNN host points out that the president lashes the U.S. media as "the enemy" as he praises dictators.
A pseudo-religious philosophy promises North Koreans a kind of immortality through their dedication to the state.
Experts say the country's nuclear weapons tests are stronger than ever.