Use your imagination ;)
Edit (for you down-voters): Fine, here's some off the top of my head:
* Rent your own plane and fly over without permission,
* register a fishing company and get a job working for BP,
* find a way to take pictures while avoiding detection, or just
* bribe the fishermen.
These are off the top of my head, I imagine someone whose full time job depends on thinking of them will have many more and better ones.Edit-reply: you're right about my first example, if violating the FAA regulations is as risky as it sounds. But my larger point, that entrepreneurial journalists should be able to find a low-risk way, stands.