Four crew of the fishing vessel Katmai were rescued, but five were killed and two remain missing after the boat sank early Wednesday in the Bering Sea off the Aleutian Islands.A couple of years ago, a jobless Bobby Harrison contemplated a dramatic shift in lifestyle, leaving the urban comforts of Portland to join his cousin aboard the Katmai, a fishing vessel that tapped into the harvests off Alaska. But Harrison couldn't swim, and had heard a few too many tales about the dangers of fishing the North Pacific. He opted to stay put. "I heard stories about guys who had...