Nuclear Fuel Reactors News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Cnn crews are in place. stan grant, sonja gu-- sanjay gupta will talk about the radiation and threat it poses to the public. and jill dougherty at the white house with new efforts to get america out of harm's way. let's begin with you, stan. the water drops seem like a last-ditch effort to cool the reactor to prevent a meltdown. but i don't know, it just seems more like an act of desperation. >> reporter: they are trying everything they can. there's no doubted about thatment you know, they've tried sea water. now they're coming from the air and also from the ground off the back of water trucks...

>> what do i mean by that? i'm concerned that the radiation levels are rising to a point where they cannot get workers close enough to be able to reduce that radiation. and if the workers can't get there to get enough water on that nuclear waste pond, can't get enough water in the nuclear fuel reactors, then the radiation will continue to increase which means the workers have to pull back. over and over again this cycle repeats itself. if that culminates, that means the workers won't have any access to what's happening. we're not there yet, but i'm afraid we're on that road. we saw evidence of...

Have actually seen posted or heard from her. >> so you know she was okay after the earthquake, but you have not heard from her since the tsunami. >> that's correct. >> we're following a lot of developments in the next hour of the cnn "newsroom." stan grant is live in tokyo with the latest. >> reporter: dropping water from the sky and the back of water trucks on the ground to cool nuclear reactors, while at the same time the united states and japan are disagreeing over the extent of the radiation risk. all that next hour. >> reporter: i'm jill daugherty at the white house. the u.s. government i...

Stable. the stroutrouble is with two, t and four, especially three and four. dangerous material is seeping out, in the event of a full-blown meltdown. in four, the problem is a pool of water. the fear is that the water is actually evaporating and it's exposing spent fuel rods, very dangerously. again, the risk of pumping more radiation into the air. according to the nuclear safety agency, the radiation level has been dropping. at the gate it was less than the rate of some x-rays you may have. the problem is convincing people about that. there is a big trust deficit here between what the govern...

About it going forward. that's the dilemma japanese officials face right now. >> and they're still working on reactor number three right now. walsh also says if the reactors can be cooled and there's no significant release of radiation, the damage can be contained to just economic loss. he says crews could pour concrete into the reactors, entomb the fueled rods, and render them virtually harmless. foreign residents in japan need permission to return before they leave the country. today more than 2,500 people formed a long line at the immigration office in tokyo where they are seeking those r...