people are scrambling because the breach is immediate and in big-time danger. they have to let some of the water out for the people who are downriver. again, anywhere from baton rouge down so that the boils don't become catastrophic. >> any more pressure would put the levees behind their designed capacity. that was years ago. now, the levees have been stressed so much lately, we don't know what the design capacity is. how much they can hold. >> dha were nade to have a 500 year flood. at some point in time, this has been called a 100-year to 300-year flood. the numbers, that's a complete gray area. where you go from 100 to 300, do we even know because the last flood wasn't 100 years ago or 300 years ago that was this bad? the problem is you have the army corps, they look at the levees all the time. they look at thement r them, they mare sure there aren't animals burrowing there. but if you have a couple animals burrowing under, making gopher