Why Did North Korea Restart Its Nuclear Reactor?
By Mitch Shin
The reported restart of the Yongbyon nuclear reactor is likely a bid for attention at a time when the United States is more focused on China’s rise.
Photos Show North Korea May Be Trying to Extract Plutonium
By Associated Press
In January, Kim vowed to enlarge the North's nuclear arsenal and disclosed an array of high-tech weapons systems targeting the United States.
How Many Nukes Does North Korea Have?
By John Power
Pyongyang confirmed that its nuclear facility is back online, but there's still a lot we don't know about the program.