Gas drops 53 cents in two weeks
                                
                                
                                    (Newser) -
                                    Gasoline prices have dropped 53 cents in the last two weeks, the steepest decline ever, according to the nationwide Lundberg Survey. The national average price for a gallon of regular unleaded is $2.78, Reuters reports. Wichita, Kansas, has the cheapest gasoline, at $2.26 a gallon, and San Francisco...