Bill Clinton: “Your weapons are unique.”

Damn it, what we have in common matters more. We cannot throw the legacy of this country away.

That ain't America. We've never done that.

I don't think any person with a straight face can tell you that Katrina was caused by global warming. But what we do know, what the evidence shows, is that there is an increase in the number and severity of bad weather events all across…

Diverse groups make better decisions than homogenous ones do.