briefings later this afternoon. meantime, msnbc science and environment expert jeff corwin tells us more about the efforts to save sea turtles from the gulf. >> this is ground zero of a conservation project. the mission is to save the next generation of sea turtles put in jeopardy. we were there and this is what we witnessed. >> the oil spill has had a truly profound impact on the whole ecology of this region. a lot of people would argue that resources are limited and should be focused on other things. why are sea turtles so important? why should we care? and why should we save them? >> well, they are a threatened species. and that is our job as an agency to try to recover them. and, in fact, six of the sea turtle species are threatened or endangered. we need to do all we can do to