The national average for a gallon of gasoline dipped today after about a month of steady increases. At the same time, tension with Iran could push those back up.

Over the weekend Newt Gingrich stumped in front of signs that promised gas at $2 .50 a gallon. Is such a world even possible today?

Behavioral economist Sendhil Mullainathan puts into perspective why we shouldn't be too angry over rising gas prices.

Iran has threatened to block the strait if President Obama signs a bill to impose sanctions to keep it from making nuclear weapons. The impact on oil prices worldwide would be major and immediate.

On today's show, I gave Kai a lesson on hypermiling, a method of driving that can increase your car's gas mileage and in turn save you from spend…

This final note today, just a bit more on gas prices to end where we started: who's to blame is a moderately hot topic of conversation these days….

This final note today, in which I promise never to complain about gas prices again. The Honolulu Star Advertiser reports today on a station in Hana…

Here are the latest headlines from the Marketplace Morning Report and around the web….