Alaska Dispatch by Craig Medred.  U.S. Secretary of the Interior Ken Salazar (NGP Photo) shocked even Shell itself by announcing the company could proceed with preliminary drilling of a single well in the empty sea 61 miles from this village.  Salazar did impose limits. The company must stop drilling nearly a mile short of any expected pools of oil and gas. Still, the conditional approval will allow Shell to finally get to work after six years of waiting. At Shell's headquarters in Anchorage, the mood was optimistic.       [...]