Once in full operation, which could take years, the Yongbyon nuclear reactor would enable North Korea to produce 6 kilograms of plutonium a year to add to its nuclear weapons stockpile.
President Obama made a strong pitch to Americans to join him in enforcing nonuse of chemical weapons. His methods – either by missiles or diplomacy – may be in dispute. But his goal fits a trend against mass and indiscriminate violence.
President Obama is willing to push for a deal in which the international community would verifiably secure Syria's chemical weapons. That course will be difficult to pursue. But it is doable. Here's what's required.
Actor, karate champion, and Obama critic Chuck Norris weighs in on the Syria crisis. His message to Obama: 'Quit taking the bait' from Syrian President Assad.
Doctor Who’s fictional world isn’t girdled with the basic scientific principles that govern our world. But that doesn’t mean that Doctor Who’s science is total fiction – in fact, most of the extreme science in the show is based on very real, and often very cool, scientific precepts. Here are just a few of them.
A Russian proposal to put Syria's chemical weapons stockpile under international control has revived international diplomacy on Syria.