Wednesday and Thursday mark Egypt’s first post-Mubarak presidential elections. Sadly, what should be a purple-fingered moment brings some hope and much disappointment. Don’t get me wrong – Mubarak was a loathsome stooge, a petty and incompetent rentier tyrant who deserved what he got and more.

Revolution Day protests against the Islamic Republic may not be the end of the Islamic Republic's tyranny, but it could be the end of the beginning of the necessary revolution.

The future is on the way.  Leading-edge innovators, we are assured, have already moved on, and are earnestly focusing on the just the sort of problems - manufacturing, energy, transportation (and I'd add healthcare) - that urgently require imaginative solutions.

With school districts clamoring to partner with Sal Khan, in 2012 we’re going to hear a lot about the transformative potential of the “flipped classroom.

Everybody who pays attention to these sorts of things knows Muslim societies are almost uniquely immune to the forces that have been driving down fertility rates on every continent for decades. But everybody, it seems, fell asleep before the final act.

When Vladimir Putin returns to the Russian presidency on Monday, May 7, the pageantry surrounding his inauguration will aim to portray a picture of unassailable strength, a confident master of his domain invulnerable to pressures from within or without. But things are not quite as stable...

Warfighting is becoming more risky as authoritarian regimes modernize their forces. If the United States wants to retain the ability to respond successfully to crises across the globe with a leaner and more cost-effective force, then our leaders must recognize that maintaining control of the air is the starting point for U.S. military supremacy.

Durably improving health is really, really hard. I've discussed this in the context of drug discovery, which must contend with the ever-more-apparent reality that biology is incredibly complex, and science remarkably fragile. Here, I'd like to focus on another challenge: measuring and improving the quality of patient care.