It’s Memorial Day weekend, and people are hitting the road. Drivers are paying more for gas. The Lundberg Survey says the price of a gallon of gasoline in the United States rose sharply in the last two weeks because of outages at Midwest and West Coast refineries. Gas prices in Chicago are often higher than New York, Los Angeles -- even Hawaii. Why does this happen when we aren’t far from oil-rich Canada and we have a huge refinery right next door. Illinois Public Radio’s Michael Puente reports.