Historian Margaret MacMillan sees parallels between the lead-up to World War I and today's instability in the face of rising Russian nationalism. She says the West failed to appreciate Russia's feeling of humiliation after the Cold War. She warns against dangerous miscalculations and for a strong response to Putin.
Xenon is a gas that occurs naturally, in tiny amounts, in the air all around us. But is it the next super drug for athletes who want an illegal edge? Rumors say yes, but the science is far from certain.
The "Anti-Maidan" rally in Moscow marked one year since a pro-Western uprising in Kiev's Maidan Square toppled Ukraine's president. But the attendees have a far different view of everything that's happened since then, and they're not afraid to say it.