visible oil and going on visible sightings, is it harmful? there are disperses petrochemicals to some, you know, to some extent there. but the health effects aren't quite known. >> you also write about how the quality tests are useless right now in terms of gauging what the health effect will be. so the advice from officials, whether federal or local, or otherwise, you have to stay out of the water entirely? do you have you to avoid the beach at all costs? >> i wouldn't say avoid the beach because you can still go out there. you know, federal officials urge them to keep -- to keep the water closed, at least. but you know, as you mentioned, the problem is they do a test, three days before the get the results back and the place where they tested could be full of oil at that point. that's why it's useless. so you know, basically they're urging people to use their common sense, if you're sensitive to chemicals, don't go