In the summer of 2008, with TV cameras rolling, North Korea blew up a cooling tower at the Yongbyon nuclear complex — a goodwill gesture intended to show the world it was serious about striking a nuclear deal. A decade later, history is poised to repeat itself.

North Korea has invited foreign journalists to observe the dismantling of Punggye-ri, the remote mountain site where six nuclear bombs have been tested in underground tunnels. The demolition, slated to occur May 23-25 depending on weather conditions, will involve “collapse by explosion” of the test tunnels. Read more.