A credit implosion threatening US prosperity magnifies the costs of errors in energy policy, of which the federal government has committed far too many in recent years. While attention now properly focuses on keeping a liquidity crisis centered on bad mortgage debt from strangling the US economy and infecting the rest of the world, energy cannot for long stay in the shadows. It’s too important to economic health. And politicians have mistreated it for too long.Hopeful signs glint in the gloom. Congress this month dropped moratoriums in effect since the 1980s on leasing of undrilled acreage on the Outer Continental Shelf. And, in his first debate against Democratic presidential conte...