CNN's Tom Foreman takes a closer look at what we know about North Korea's nuclear capabilities. http://cnn.it/2unMwlH | CNN

CNN's Tom Foreman takes a closer look at what we know about North Korea's nuclear capabilities http://cnn.it/2uplyy4 | CNN International

While the world learned about North Korea's latest military test shortly after it took place on August 29, in Pyongyang, the announcement was not made until a day later. http://cnn.it/2iIYXXM | CNN

North Korea conducted its second missile test in a week http://cnn.it/2qGYs2o | CNN

Watch footage of North Korean officials blow up what they say is a nuclear test site https://cnn.it/2IHsn5c | CNN