Some blame Trump, and some blame the DPRK, and even China. What the drama has really exposed is a shocking lack of seriousness and preparedness on the US side, particularly on Trump's part, as to how to seize such a rare opportunity to ease the tensions on the Korean Peninsula. Despite the drama last week, Trump has shown some flexibility for a phased dismantling of DPRK's nuclear weapons program, in sharp contrast to the previous stance of a total abandonment of the arsenal without reciprocal US concessions. Denuclearization of the Korean Peninsula is the goal that many countries have been working hard toward in past decades. The Obama administration and its NATO allies pursued regime change in Libya in 2011, just eight years after Muammar Gaddafi gave up his nuclear weapons program.