let's get right to the latest from new orleans with cnn's david mattingly. david, what are they doing right now to stop the spill? >> jeff, right now they're trying something they have never done before. not just at this depth, at this mile down at the bottom of the ocean, but never before have they tried this, where they're going to insert a tube inside that leaking pipe. the idea is they hope they will seal that up tonight and be able to siphon that oil that is now leaking into the gulf of mexico up to the top to a waiting containment vessel. they've been trying these things. a week ago they had a huge containment dome that failed on them. they didn't have a plan b ready to go. this time they're trying multiple things. if this insertion device does not work, they have another smaller containment dome ready to go. so bp not putting all its eggs so to speak into one dome this time. >> david, you're really getting to the heart of what this story seems to be about, a lack of plan b. you set this up by saying this is unprecedented. it's never been done before. w

david mattingly is live in venice, louisiana. ou saw firsthand the impact the oil is having on the wildlife. what have you seen so far? >> reporter: we went out into the gulf of mexico looking for oil. we found it, but what we found in the oil made it even more disturbing. take a look. both captains told us where to find it, an ugly reddish-brown wave of oil. the seas are still rough, but right here in front of us, looks like a red, muddy line through the water. that is the oil. national wildlife federation president believes the impact on wildlife is inevitable. >> it's been treated so it's breaking up and disbursing into the water column. >> reporter: all the way down. i'm going to grab a towel here. this is rubbing up against the side of the boat. there it is. that's what's in the water, sticking to the side of the boat right there. if this is doing this to the boat, what is it going to do to anything that lives in the water? >> hard on the fish and shell fish. >> reporter: the oil seems to go on forever. over here, as far as t

david mattingly, thanks so much.room" straight ahead. >>> a garden in the middle of downtown. hard to imagine where pavement and tall buildings rule, but that's what's taking sprout in miami. fresh fruits and veggies red for the picking, good for the farmer and good for the customers. cnn's john zarrella has more in today's "building up america." >> reporter: in the shadow of high-rises, a garden of greens, turnips, broccoli and something called calalu or jamaican spinach. >> you cook them or what? or put them in a salad. >> no, we cook them. >> reporter: really? >> you can do salad, too. >> reporter: here, too, once a week on wednesdays, small family farmers sell their produce. >> you don't have to go to canada for greenhouse cucumbers anymore. go right to homestead. >> it's absolutely delicious. >> reporter: this is overtown smack in the middle of downtown miami, a supermarket? not around here. in a unique way, this farmer's market fills that void. here eddie stewart can use cash or his ebt card known as food stamp

cnn's david mattingly went out into the gulf to get a look. >> reporter: both captains in port told us of oil, a bumpy two-hour ride later it was impossible to miss. finally here we are 15 miles out. we slowed down. the seas are still pretty rough as you can see. i don't know if you can see it or not, just right here in front of us, looks almost like a red muddy line through the water. that is the oil. >> reporter: national wildlife federation president believes the impact on wildlife is inevitable. >> you can see it's been treated so it's breaking up and it's dispersing into the water. >> reporter: it looks like pea-sized blobs in the water. millions of them. all the way down. >> okay. i'm going to grab a towel here. this stuff is rubbing up against the side of the boat. there it is. that's what's in the water. that is sticking to the side of the boat right there. if this is doing this to the boat, what is it going to do to anything that lives in this water? >> it's going to be very, very hard on the fish and shellfish. >> reporter: and the oil seems to go on forever. over here, as fa