Share 'Why is diesel fuel more expensive than gasoline?'

Here is a big question: Why is diesel more expensive than premium gasoline in the US and Canada, but cheaper in most of the rest of the world? If you look on the 'net, in the US it is because it is "more expensive to manufacture". Strange, I am old enough to remember when it was cheaper than regular gas. Go to Europe and it is cheaper than gasoline, but you are told this is because "the governm...