Officials in Oregon are facing the daunting challenge of what to do with a Japanese ship dock, torn from its moorings by last year's tsunami, now washed up on a popular state beach. How did it float thousands of miles across the Pacific without anyone seeing it? Lori Tobias, who reports for The Oregonian, has been working on a story about debris from Japan's disaster. Now the story has arrived almost on her doorstep, in the form of a floating dock on Agate Beach.