the saltwater was enough to rest it out. >> it people think stucco is waterproof -- it is not waterproof. it sucks the water in. you have to water protect it and paint it. >> the above the low medium that was going on -- the bungalow frenzy that was going on, people were building houses at a remarkable rate in the 1930's. nothing down. you can pay us later. we have to sell this. this is shared in school and the ocean view that it -- this is shariton school and the ocean view dedication. these early neighborhoods, this is 1910, they would have to do a lot of things themselves. the first school was built by the neighbors. the district did not have the money or the interest. when they finally got a school the city built, it took 25 years to get it. this is the dedication. >> they have diagonal sheathing. >> they had an architect in charge. you could get rattlesnakes. some of the great homes in san francisco built before the earthquake had diagonal sheeting. all of the joints had to be cut at a 45 degree-angle. this had diagonal sheathing. >> much more effective. >> those three buildings are

which you get more pressure, in the saltwater or freshwater? - saltwater. - why saltwater? - more dense. - because it's more dense. see, saltwater is a little bit more dense than freshwater. gang, i wanna show you the fact that liquid depends only on depth and density with this little device here. these are called pascal's vases. what i'm gonna do is i'm gonna fill up a tank over here, a reservoir, and water is gonna flow from this reservoir into here. i'll raise this up, and i'll water come from here into here. okay, gang. this little marker reminds me how high that is and we have a reading that's about up to here. let me put a little red mark so we can where it is. it'll be something like that, yeah. okay. now, let's take this down. empty the vase and we'll put on a bigger vase and i'll show you something rather remarkable. okay? like this one. more volume, yeah? but i'm gonna fill it to the same depth, and guess what we're gonna be seeing, gang. okay? it turns out this gauge is measuring the pressure over the height over here. but when the two heights become equal, then

. >> reporter: in antarctica, time lapse photography beneath the ice shows a saltwater icicle as it forms. reaching the seabed and killing creatures in its path. even in the far reaches of the unfamiliar, there are relatable moments, producer vanessa burlowitz was five months pregnant while tracking a polar bear and her two cubs and got a quick lesson in parenting. >> she was knocking them into what we call the naughty corner or time-out and i was sitting there thinking, i probably have got this sort of thing to come. >> reporter: from nurture to dramatic scenes of nature, where animals fight to survive, penguins using all their might, lunging through the water to escape a sea lion. and a resting seal on an ice flow, falling prey to a pod of killer whales, working as a team to create a wave that washes it into the water. the silent giants also surprised hunter. >> kneeling beside a tiny hole in the ice and this orca would explode out of the water beside me and to look up at an orca ten feet above you eyeballing you was a real exciting experience. >> reporter: a spectacular visual journey

saltwater nasal washes can help asthma and allergy suffersers. >> and it helps them breathe bet. >> i do them at home with a bad cold. >> reporter: but infection prevention has a warning. don't use tap water. that's because of this brain- eating amoeba, common in warm rivers and lakes but if it travels up the nose to the brain it can be deadly. >> to give you perspective, 32 cases recently 31 patient died. >> reporter: the infection quad by the amoeba are rare. two cases in louisiana were linked to tap water. >> it's not worth the risk. it doesn't cost that much more to boil your water or to buy distilled water. >> reporter: a in alert from the cdc says don't use tap water in sinus rinses, only distilled, sterilized, boiled or properly filtered water. the prevention inexpensive, the infection could cost your life. >> a gavel distilled water is less than $2. you can use the gallon of distilled water worry-free. use it for the ironing, too. [ laughter ] >> mother always did. thank you. >>> the teenager accused in the ohio school shootings was charged today and we have spent the last sev

the saltwater has left more than 58,000 acres of farm land and rice paddies unusable. what continues to grow all along the coast? these mountains of debris, 22 million tons of it. they're an inescapable reminder of what was lost and the most tangible sign of what has been accomplished in the year since the disaster: the reclaiming of the land. yutaka kumagai represents sendai in the diet, japan's congress. when we met him a year ago, he seemed in shock. he had lost two relatives in the tsunami. >> reporter: he joined the majority and passed a $235 billion five-year recovery plan. is that enough? >> i don't think so, i don't think so. >> reporter: as he surveys his wrecked district, he admits the task of rebuilding is daunting. his constituents are growing discouraged at the slow progress. still, they encourage him. >> reporter: so they're trying to cheer you up. >> reporter: shoji yamada says he'll get a loan and with the help of his son rebuild his house. in many ways, he's it's a tale of two cities >>> good evening, i'm dana king. >> i'm allen martin. >>> it's a tale

meanwhile the island is coping with saltwater intrusions into its fresh water supply. >>> in election to 12 news caucuses in two states with two different winners. mitt romney took most of wyoming's delegates and rick santorum won in kansas. the split decision isn't bothering the candidates who are looking toward to next week's primerres. barbara hall reports. >> this is on important election. you have heard everybody say it on our side of the aisle. this may be the most important election in our lifetime. >> reporter: rick santorum lands a victory in the sunflower state. ron paul hasn't won any g.o.p. contests so far, but still says it's everybody's race too win. i never think it's do-or-die for anything. everybody is in the race and there is no declared winner. so i think we're all going to keep doing what we're doing maximizing our chances to get more delegates and we feel good about that. newt gingrich and mitt romney ditched plans to campaign in kansas. they focused on southern states. on campaign stops in mississippi, romney an gingrich made it clear it's time for a new presiden

a large earthquake here could flatten these soft earthen levees flooding lowlands and allowing saltwater to push in land destroying the state's freshwater supply for years. all this led to a plan that they say will address two questions. >> what could reliably be exported from the delta? but also, what is necessary to restore the habitat? >> reporter: the proposals being studied include creating gigantic underground pipes to take water from the sacramento river before it even gets to the delta and send it 35 miles south to the pumping station in tracy. the tubes would be roughly the size of the new caldecott tunnel and would burro into rock under the delta making it more seismically safe. the plan calls for more than 100,000 acres for land to be returned to tidal wetlands for habitat restoration. the total cost is staggering. nearly $25 billion to be paid mostly by water users. >> i think it could very well destroy the salmon fishery in california. >> reporter: a spokesman for the salmon fishermen says this is a political scam by agribusiness an southland water district to take even more

the saltwater has left more than 58,000 acres of farmlands and rice patties unusable. the only thing growing in the mountains is the mountain of rubble. more than 22 million tons. >>> a flight attendant's screaming rant to passengers created panic and a flight delay in dallas. [ woman screaming at the top of her lungs ] >> get out of the plane! ! >> american airlines passengers say that the flight attendant began yelling during the preflight announcement for 15 minutes. she warned that the plane was going to crash and ranted about the september 11th attacks. she was taken to the hospital for psychiatric evaluation and the incident is being treated as a medical issue not a security threat. >>> toyota owners buckle your seatbelts. a couple of big recalls to tell you about. on the consumerwatch, julie watts tells us what's wrong. >> reporter: well, allen, there are two separate toyota recalls. in all, nearly 700,000 venza, camrys and tacoma pickup trucks need fixes. a problem with the cable on the pickup could prevent the air bag from deploying. the recall affects models

it describes the suggestion that our saltwater beach days lost to contaminated waters decreased by 35% from 2010, and it credited some of the big projects that rhode island has done. we have, the narragansett bay commission has built enormous tunnels and receiving chambers underground to store storm water from our combined sewer overflow storm systems so that they don't have to bypass sewage treatment, and they can be held. and when capacity is restored at the treatment plant, it can be pumped and treated properly. newport has built a $6 million ultraviolet treatment system for storm water that discharges on to eastman's beach. we're doing our job, and we've put a lot of money behind keeping our waters clean, so it really hits hard when this funding is cut off to rhode island, as i said, as a largely nonpollution-producing state for the country. .. >> i do have to say that this country does not have a sufficient money to continue all our government agencies and departments at the same level of funding. they just do not have it. and the house republicans have produced a budget. it's a l