She's even-handed enough, and certainly her background and recent work gives her authority, but still that entire article distills down to "I don't know where the oil is either, but a lot of awful invisible things might be happening." *

The oil is not only "invisible to the eyes" it's almost invisible to the chemists who are spending a lot of time trying to find it now.

The Gulf EATS oil. It has done so for millions of years. The Gulf has leaked methane for millions of years. Life forms thrive on that as well, including specialized communities that live off the chemical energy of cold seeps like other life forms that live off the "smokers" along ocean rifts.

I would be interested in seeing her methane results, and comparisons with tests in the same areas before the spill.

The main point of the article was that we were buried in lies and fearmongering by the media and policitians trying to make hay out of this crisis, and that most of the economic damage down there is being done by that, not by the oil spill. The author did a similar article on Katrina, which made some of the same points.

Some EPA data here.
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* This is pretty much where the climate change issue is right now, too.