So it's important to keep up with the current state of science for any issues that concern you greatly -- and to especially listen for clear warnings, rather than faint indications of possible correlations or risks.

CNN: STORY HIGHLIGHTS

And again, I just want everybody to be clear -- because sometimes, when you listen to the news and you listen to some of these other politicians, they seem a little bit confused about what I'm saying.

WHITEHOUSE: President Obama Speaks on Expanding Our Energy Portfolio

But he promised to listen to all the arguments and take a "cold and clear look at this".

BBC: You are in: UK Politics

Afterward in Jordan, Obama sent a clear message that as commander in chief, he would listen but then make the decisions.

CNN: Army chiefs urge caution for Obama's planned troop cuts

It was not tightly framed or focused on a single concept, nor was there a single clear phrase that summed up the speech, at least at first listen.

CNN: Obama's ringing defense of liberalism

Anti-smokers are undoubtedly right to say that big tobacco failed to come clean about the harmful effects of smoking (though why people should choose to listen to the industry's advertisements rather than the surgeon-general's health warnings is not clear).

ECONOMIST: Rout of the new evil empire