An instructor points to a line of code in the programming language Java displayed on a projection screen during a cyber-defense programming class in the "War Room" at Korea University in Seoul, South Korea, on Thursday, Nov. 26, 2015. In a darkened "war room" dozens of South Korea's brightest college students are practicing hacking each other as part of a government program to train them to battle some of the world's best -- the shadowy techno-soldiers of Kim Jong Un's regime. Photographer: SeongJoon Cho/Bloomberg via Getty Images
