Detailed text transcripts for TV channel - MSNBC - 20100722:15:42:00
Back turtles the size of small cars live, there is cautious optimism. so far the marine biologists on this mission have found no visible signs of oil. >> you havent seen a large underwater plume of oil yet? >> no, thankfully. >> what about those little microscopic pieces of oil floating in the gulf? >> we havent seen though yet and those are very hard to detect. >> reporter: to determine if specks of oil too hard to see have spread this far, the submersible and another unmanned collection contai...
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