A powerful new cyber weapon that was detailed at a security conference on Tuesday could hijack industrial facilities such as nuclear power plants and trigger their destruction. One scientist says the weapon may already have been unleashed against Iran's nuclear program.

Dubbed "Stuxnet," the stealth code was discovered on high-security...

Every successful politico is adept at deal-making and the use of powerful allies. It took the first female speaker in US history, however, to field a totally new political force: nuns.

Whatever the fate of the Democrats in the midterm elections, when history books judge the speakership of Nancy...

It is no surprise that carbon offsets were concocted during the era of irrational exuberance. They are a low-cost, free-market way of assuaging guilt about global warming. Need to pump hydrocarbons into the air? No problem. You can buy a piece of a green project somewhere else in the world...

Since the 9/11 attacks, national security has largely been about protecting the US homeland against radical Islamists. But as dangerous as al-Qaeda and other groups have proven to be, the threat they represent is not as systemic as the ongoing threat of cyber-warfare.

Right now, there is every reason...