part of lose reduce because they know their liveli livelihood is. >> with that oil fast approaching, experts to volunteers are scrambling to try to minimize the damage to wet lands and wildlife as chad was talking about. oil engineers and others are racing to try to stop the flow. it's a huge challenge. up close with the latest, tom foreman joins us. >> sanjay, the technical challenges here are really massive. i'll move inside here and show you underneath the water what you're looking at. this was explained to me by expert at lsu. i'll put it in simple terms. three pipes leaking but let's just imagine one of tease. what you have is a pipe less in foot in diameter spewing oil under enormous pressure. should have automatically shut