Concern about North Korea’s nuclear program is as high as its ever been: Kim Jong-un has stepped up his testing program and the U.S. sent a carrier strike group to take up a position in range of the Korean peninsula, drawing a threat from Kim to strike first. Saturday is North Korea’s most important holiday: the birthday of the Eternal President—Kim Jong-un’s late grandfather, Kim II-sung. It’s traditionally an occasion for a big test launch or detonation. VICE News’ Charlet Duboc was in Pyongyang for a government-announced ‘big event.’