National Post, by Don Martin.  If the weather is clear next week, possibly on the very day Prime Minister Stephen Harper drops in for a visit, whale hunters in this economically depressed Arctic Ocean outpost could watch their former and future prosperity being towed to Alaska.  The last drilling rig in Canada's Beaufort Sea is on the move, to a standby position in U.S. waters to drill a relief well in case of an oil spill.  ...   For Mayor Gruben, a good-natured businessman who seems to know everybody in this [...]