A political campaign with “change” as a rallying call should be good for energy policy in the US. But don’t count on anything.Because “change” can mean whatever anyone wants it to mean that suggests departure from some perceived norm, it’s a marvelously useful political word.Early in the presidential primary season, incantation of change galvanized the campaign of Sen. Barack Obama (D-Ill.). Now all candidates of both political parties promise to be first-order changers.So far, particulars don’t seem to matter much. Change in general will do for now.That this is so testifies to widespread American discontent.Protracted war in Iraq no doubt explain...