This post was originally published on this site. The fuel most Americans never think about could become the Iran conflict’s biggest economic consequence. While gasoline prices grab headlines, diesel quietly powers the trucks, farms, freight trains and heavy equipment that keep the U.S. economy moving. From the groceries on supermarket shelves to the Amazon package on your doorstep and the materials used to build new homes, diesel is embedded in nearly every step of the supply chain. As prices rise, businesses face higher transportation costs that economists say often ripple through the economy, pushing up the cost of everyday goods....