Nuclear Winter: A Retro Report

Carl Sagan was among a group of Cold War scientists who once feared that a nuclear war could plunge the world into a deadly ice age. Three decades later, does this theory still resonate?

Spread of HIV in Modern Russia

In the past four years, the Russian government has systematically engaged in a crackdown on the LGBT community and NGOs, silencing AIDS awareness.

Chill With Russia Brings Nuclear Insecurity

Nikolai Ponomarev-Stepnoi dedicated decades of his career to a U.S.-Russian effort to prevent nuclear proliferation. Today, the retired nuclear scientist is glumly watching it all fall apart.

Putin's Muslim Nightmare

The Russian president’s intervention in Syria is driven by fear of Islamic extremism among his country’s own Muslim minority. But rather than squelching the threat, it’s poised to make it worse.

Putin Takes on Syria

Vladimir Putin's sudden interest in Syria makes Russia a global player again.