hailed as international heros. but they know it easily could have ended much differently. really proud of my friend that he just reacted to quickly and so bravely. he was really the first one over there. even after being injured himself, he went to go help the other man who was bleeding also. without his help, he would have died. reporter: and most certainly many others on that train would have too. when asked how it felt to know that their son was an international hero, the parents of one of americans said he just knew what he had do. nick valencia, thank you so much. an ultimate hey iteum, dead threat of war. the latest on the high level meetings between north and south korea. and we ll talk with one sxerpts about what must be done to pull north and south korea back from the brink of a shooting water.
above strategy instead of algae, geothermal, solar and wind. those are not all of the aboves. what are all of the aboves are things like this new plan to permit 3700 new wells, hydraulic fracturing wells in utah. can i explain a little bit what this means? martha: show us what you got. in old day in order to get access to natural gas formations do we have it here? natural gas formations are formations separated by rock. old days you have to drill here, drill here, drill here. technology changed. we figured out a way to turn the drill bit horizontally. way they do that shooting water, chemicals and sand into the ol hell and access all of that gas. the problem was environmentalists were saying what is impact of that? obama administration pushed back says we ll not permit these drills because we re not sure what is going on here. this new study, new permit for 3700 new wells in utah basically says they re willing to push back on earlier standards, lighten
because of their effort, tepco said today it has now connected an external power line to the stricken plant. the line will first supply reactor two, because it is not as damaged. power was of course knocked out a week ago in last friday s earthquake. the backup generators that run on diesel were flooded one our later by the tsunami. so getting power restored, power that could potentially run a cooling system, would seem to be a significant step, because ultimately if restoring all of the cooling systems in every one of the reactors has to be the goal. spring water on spent fuel pools which are reportedly damaged can only do so much. it is probably providing some immediate cooling relief, but you can t keep shooting water at the reactors forever. or if not forever, for the multiple years it takes before the fuel rods are safe enough to be taken out of the pools and put into dry storage. so what can be done as a lat
cannons as opposed to the helicopter drops. that means putting more personnel in harm s way. the u.s. military helped a japanese crew to learn how to use two water cannons the military had. they have donated those. but it is very difficult. they are trying to pour literally pour water on top of these fuel rods to get them covered to cool them down. but at great personal risk to themselves. i want to bring in dr. sanjay gupta. what is the greatest risk for people in the outlying areas? well, the greatest risk is that these radiation levels we ve been talking about start to go up. you try to cool down these rods, but that s a continuous process. are they going to continue shooting water at it? it doesn t make a lot of sense for the longer term. the radiation levels go up, if they get higher into the air and can disburse more as a result of that, then these evacuation