magnets South Korean scientists announce room-temperature superconductor: "a brand-new historical event that opens a new era for humankind" Mark Frauenfelder
security In Cambridge Analytica clean-up, Facebook says it killed 'Tens of Thousands' of apps Xeni Jardin
north korea Obama administration: North Koreans probably not responsible for Sony Hack, but hey, let's sanction them anyway Xeni Jardin