In a show of force after North Korea’s nuclear test last week, the US sent a long-range bomber on a low-level flight over a military base south of Seoul.
When South Korea gets angry with the North, it turns on its loudspeakers. In an angry response to the latest nuclear test, it's started pumping out K-pop and insults across the border.
While the UN Security Council condemned North Korea's latest nuclear test, Pyongyang refused to back down and called the US "a gang of cruel robbers."
North Korea’s claim that it successfully detonated a hydrogen bomb has been met with widespread skepticism, but there are reasons to believe Pyongyang.
The fear of Germans acquiring nuclear technology, espoused here, is considered to be the motivation to the U.S.'s creation of the atomic bomb.