And we turn to the EPA's new regulations requiring cleaner gasoline. The Obama administration announced the proposed changes today.They would require two-thirds less sulfur in gasoline and a reduction in other emissions beginning in 2017. They also would set tighter pollution limits for new vehicles themselves at the same time.The EPA says that it would reduce premature deaths and improve public health for a minimal cost. But opponents say it could hit consumers at the pump by adding as much as nine cents a gallon.Juliet Eilperin broke this story for The Washington Post and she joins me now. Welcome to the NewsHour.Thanks so much. So why is the Obama administration doing this, putting these proposals out there?Well, there are a couple of reasons. One is the fact that they are requiring vehicles to be cleaner in the years ahead. They have basically reduced greenhouse gas emissions from these vehicles.And so you will see between 2016 and 2025 the vehicles are going to become much more efficient. They're going to get more miles per gallon.And so one of the things automakers have been asking for is for cleaner fuel because the sulfur in gasoline really affects the catalytic converter and makes it less efficient, results in more tailpipe emissions. So they actually have an incentive to have cleaner fuel.So I was going to say, it is interesting who is in favor of this, that it is not just the environmental advocates. It's the car manufacturers.Absolutely. The car manufacturers, who already basically have to comply with these rules in California, which is a huge part of the U.S. market, have asked for uniformity.