North Korea's state media praised the knife attack and said it showed anti-US sentiment in South Korea. Ambassador Mark Lippert is recovering after surgery on his face and hand.
Kiev says that rebels have blocked rescue workers from reaching the mine, where dozens are feared dead.
Two young women have started Cycle for Science, a plan to bicycle across the US and drop into schools to teach kids quick lessons in physics, solar power, and renewable energy.
The hacktivist collective Anonymous has gone through a significant evolution – shifting from Internet pranksters to prominent global activists. Gabriella Coleman explains the often misunderstood Anonymous phenomenon in her book, “Hacker, Hoaxer, Whistleblower, Spy: The Many Faces of Anonymous.”
The Sony hack revealed the challenges of identifying perpetrators of cyberattacks, especially as hackers can masquerade as government soldiers and spies, and vice versa. It's a dangerous new dynamic for foreign relations, especially as what governments know about hackers – and how they know it – remains secret.
The Obama administration's proposed Consumer Privacy Bill of Rights should be viewed as the basis for starting a national conversation about stronger data protections laws, which are crucial as there is no future in which less data will be collected and used.
Two fires within a day of each other in the same poor Manila community have left thousands homeless. How can fire safety be improved in low-income areas?
The Kingdom of Saudi Arabia embraces the same capital punishment techniques on convicted criminals as the Islamic terrorist group does on innocent hostages.