'Pain at the pump': Your medium-sized car costs you $12 more per tank of gas than a year ago

Gas prices are continuing to surge up with no signs of slowing down, according to the American Automobile Association.  The national average for gas is $3.46 per gallon as of Tuesday, slightly up from yesterday's average of $3.44 and nearly a dollar more than last year's average of $2.47.  That means the average person...