. >>> and scientists say they've detected radiation from the fukushima daiichi nuclear accident in north america for the first time. >>> members of japanese education ministry panel have just finished screening textbooks to be used in public schools. as a result references to territory japan controls or claims have more than doubled compared to textbooks now in use. nhk world's tomoko kamata has more. >> reporter: members of an education ministry panel screened more than 100 junior high school textbooks to be used next year. it was the first time they'd done this using revised guidelines the government introduced last year. japanese leaders say schools need to strengthen education on japanese sovereignty, and they want textbooks to clearly state that the senkaku islands in the east china sea, and takeshima islands in the sea of japan, are the country's inherent territory. japan controls the senkaku islands. the government maintains they're part of the country's territory. china and taiwan claims them. japan claims the takeshima islands. south korea controls them. with the changes, all 20

. >>> engineers at the fukushima daiichi are learning more what caused one of their robotic cameras to get stuck. they cents it inside the nuclear power plan earlier this month to get a better look and a photo shows what went wrong ten meters into the machine's journey. a photo released shows the robot tilting to the right inside the containment vessel. officials say they have given up on recovering the device. crews sent a second robot to retrieve the first machine but the probe's camera malfunctioned due to radiation exposure. they decided to abandon both of them. officials say video footage retrieved shows no major damage to a part leading to the bottom of the containment vessel. melted nuclear fuel fell on the vessel in the 2011 accident. the operator says it will analyze the footage and other data to help remove the fuel. >>> the speaker of japan's lower house is stepping down because of health reasons. the lower house is expected to approve the move on tuesday. liberal democratic party heavy weight submitted his resignation on monday. he was hospitalized last week after falling i

. >>> engineers at fukushima daiichi in northeastern japan have been trying to locate melted nuclear feel inside a damaged reactor. they sent in a robotic camera last week which they had to abandon after it got stuck. but it was able to send back helpful data, the first ever pictures of the interior of the containment vessel. tokyo electric power company engineers inserted the remote controlled robot into the number one reactor through a pipe. the snake-like machine is designed to nav gaft around obstacles. it got stuck after moving a little more than ten meters, but not before capturing important footage. debris and machine parts can be seen. the temperature is reading at 20 degrees and steam can be seen rising. experts say water at the bottom of the vessel is evaporating due to the heat generated by the melted nuclear fuel. the radiation is reaching 10 sieverts in some places. the dose is deadly after 40 minutes of exposure. at one point it shoots above 20 sieverts. tepco says they will analyze the footage to try to find ways to remove the molten fuel. the reactor melted down follo

they want to see inside the reactors at fukushima daiichi but it's too dangerous for humans. so for first time they've sent a robot into one of the containment vessels. three of the reactors suffered a meltdown after the 2011 earthquake and tsunami. they haven't determined the extent of damage or located the melted fuel. high levels of radiation are hampering efforts. a remote controlled robot was inserted into the number one reactor containment vessel through a pipe. the snake-like machine is designed to move around obstacles. they were unable to move the robot after it traveled ten meters. they suspect the remote control cable is stuck or the drive belts are not functioning properly. but they say they were able to conduct checks on 14 of 18 areas inside the reactors and the engineers say they've been able to receive images and radiation data gathered by the robot. until now they have used computer simulations of what is going on inside of the reactor. they've collected date that that indicates the melted fuel has fallen to the bottom of the containment vessel. >>> people ha

. >>> engineers at the fukushima daiichi nuclear plant say they're learning more about what caused one of their robotic cameras to get stuck. it sent it inside a reactor vessel earlier this month to get a better look at the damage there and they say a newly released video is shedding light about what went wrong. this 60-centimeter snake-shaped robot was designed to navigate around obstacles amid strong radioactive. but it stopped just seconds into the video. video footage shows the robot tilting to the right. officials say they've given up on recovering the device. crews sent a second robot to retrieve the first machine. but the second robot suffered a malfunction. the camera stopped working due to radiation exposure. so they decided to abandon both of them. officials say the footage they retrieved before the initial device started working is helpful. it shows no major damage to a part of the containment vessel close to the bottom. melted nuclear fuel fell to the bottom of the vessel in the 2011 accident. the operator says it will analyze the footage and other data with the aim of even

. >>> people from a town near japan's fukushima daiichi nuclear plant are a step closer to returning home. they've gotten permission to stay overnight in their own houses for the first time in four years. japanese government officials have given people in naraha the go-ahead. about 7500 of them have been living in other areas since the nuclear accident. most of the town is still designated as an evacuation zone. but officials plan to lift the order later this year. this man and his wife have been living in temporary housing in another part of fukushima. they brought alock food water and other daily necessities for their first night at home. >> translator: we finally have come this far after four years. i don't know what will happen from here on out. but we've taken half a step forward. >> officials say just over 180 out of about 2700 households have applied for permission to stay overnight. many people have expressed concerns about radiation. they also want local infrastructure to be rebuilt. officials say they'll hold a series of meetings to explain what the government plans to do.

. >>> the operator of the crippled fukushima daiichi plant released new foot angage taken inside a containment vessel. the video clearly shows there is water at the bottom of the vessel. last friday tokyo electric power company sent its first remote controlled survey robot into the number one reactor which underwent a meltdown in 2011. the robot came to a halt inside the reactor. on wednesday, the utility sent in a second one. the second robot moved along a passageway around the inner wall of the containment vessel in a clockwise direction, it recorded the damage and measured radiation levels. this video taken by the robot. the camera looks down through slits in the floor of the passageway. the black section is the water. it's reflecting light from the robot. judging from the reflection, the water surface appears to be 2.8 meters above the bottom of the vessel. this tallies with the results of past readings. the footage shows severe deterioration to the exterior of various equipment. the surface of the passageway is badly rusted. tepco officials say the coating on the metal surfaces may have p

. >>> workers at the crippled fukushima daiichi nuclear plant have discovered a small amount of liquidhat appears to have leaked from a container of highly radioactive wastewater. tokyo electric power company officials say when workers touched the container, a small volume of liquid leaked from a hole in the lid of the container. the hole is designed to vent gas. tepco officials believe it is wastewater from a system that treats contaminated water. it may include substances such as magnesium and a high density of radioactive materials. the resin container measures 1.5 meters in diameter and 1.8 meters in height. utility officials say the liquid has not leaked out of the concrete structure housing the container. tepco says it will analyze the contents of the liquid and determine why it pooled on the lid. they add that depending on the results, they'll also examine more than 670 containers in the same facility. >>> toyota motor plans to beef up its overseas production. ai uchida joins us now from the business desk with more on the japanese car giant. you have all the details. what can yo

japan's gnawnuclear regulators put in new requirements after the crisis at the fukushima daiichi plant. in february they decided the two reactors at takahama satisfied the guidelines. the presiding judge said it would be optimistic to assume there wouldn't be a major quake near the plant. he also said meeting the nuclear regulators' requirements doesn't mean the reactors are safe. he said the standards are too lax. the court decision means the reactors will remain offline pending an appeal. >> translator: we find the decision extremely regrettable. there's no way the company can accept the decision. >> he says the utility will examine the court decision and consider fighting a request to suspend the injunction. >>> a japanese journalist who had been barred from leaving south korea says he's looking forward to coming home. kato has been on trial for allegedly defaming park geun-hye. authorities lifted a travel ban imposed eight months ago. >> translator: i've become gloomy here in south korea, not being able to leave the country. it's been hard to make my point understood. because of di

. >>> contaminated rainwater leaking into the sea from the crippled fukushima daiichi nuclear plant was stopped after pumps resumed operation. the operator of tokyo electric power company found the pump generator wasn't working. a worker reported the pump malfunction tuesday, until they discovered in february that contaminated rainwater from the reactor building roof was leaking into the sea. it was spilling through the drainage channel. the pumps were installed as a stop gap measure to reroute the channel away from the sea. officials say the rainwater spilled into the sea for more than 11 hours, but they say the radioactive levels of the drainage water were low in samples shortly before they discovered the problem. >>> we've seen images of polar bears drifting on ice or water thundering from melting glaciers. these images have become symbolic of climate change. but scientists say the problems aren't just in the arctic anymore. a violent cyclone devastated the island of vanuatu last month. researchers say the surface of the sea has gotten warmer and that gave the cyclone its deadly powe

. >>> the operator of the crippled fukushima daiichi nuclear plant says radioactive rainwater is leakingfrom the facility's port. workers installed pumps to prevent its escape but they say the effort didn't work. in february tokyo electric power company officials say they discovered water on the roof of the plant's number 2 reactor building. they say it was leaking through a drainage channel. crews blocked the channel. they installed eight pumps to reroute the contaminated water so it would not seep into the pacific ocean. workers started the pumps last friday. on tuesday, the crew found they stopped working, and the water was flowing into the sea. officials say they don't know the amount or radioactivity level of the water. they believe the level was extremely low. they note that the pumps were working when checked on monday. and they say they don't know what caused the problem. >>> a bribery scandal in south korea threatens to deal a fresh blow to president park geun-hye's government. the prime minister has been implicated. he denies any wrongdoing but he's offered to resign. he has no

officials with tokyo electric power company want to see inside a fukushima daiichi reactor, but it's too dangerous. so they're sending in a robot instead. three of the plant's reactors melted down after the march 2011 earthquake and tsunami. workers haven't been able to determine the extent of damage or find molten fuel. high levels of radiation are keeping them away. tepco officials plan to put a remote-controlled robot into the number one reactor containment vessel. they'll be able to steer the snake-like machine around obstacles. they'll measure radiation and temperature levels and the robot's camera will allow them to see the damage. until now, they've used computer simulations to try to understand what's inside. they've gathered results indicating the nuclear fuel has melted and fallen to the bottom of the vessel. tepco officials say they hope the robot will help them gain clues on how best to remove the nuclear fuel. removal of melted fuel is considered one of the toughest challenges in the decommissioning. now the government-backed entity overseeing the process has revealed st

engineer who worked at the tokyo power company and especially, he started his career at the fukushima daiichi nuclear complex which many of you may be for my with because that's where the with this horrible nuclear accident starting in 2011. he decided that the best way to promote nuclear power in japan was to show the japanese that there was value to nuclear power beyond the standard and social usages, lighting and home usage. so he presented a plan to management of the tokyo electric power company to build an electric vehicle that would allow japan to transition away from oil and towards a nuclear fueled automobile it they said this is a great idea, we have to find someone to do it. no one wanted to. so he left his position as a very respected nuclear engineer to run this electric car program, spend years knocking on doors trying to get folks involved but most of the japanese automakers said we are not interested. now that california isn't forcing us to do this, we have zero incentive to get out in front of the pack from a technology perspective and to building electric vehicle. finally, su