<![CDATA[Valerie Karplus - Articles - RealClearPolitics]]>http://www.RealClearPolicy.com/authors/rss/archive/26206.xmlAuthor <![CDATA[Case for a Higher Gasoline Tax]]> http://www.nytimes.com/2013/02/22/opinion/the-case-for-a-higher-gasoline-tax.html Fri, 22 Feb 2013 00:00:00 -0600 Valerie Karplus