A magazine with cartoons of U.S. President Barack Obama, left, and North Korean leader Kim Jong Un is displayed at a book store in Seoul, South Korea, Saturday, Jan. 3, 2015. The United States imposed new sanctions Friday on North Korean government officials and the country’s defense industry for a cyberattack against Sony, insisting that Pyongyang was to blame despite lingering doubts by the cyber community. The red letters on the magazine read ” Hacker War.” (AP Photo/Ahn Young-joon)