nhk world's junko noda sat down with hidehiro nishiyama to talk about the current situation at fukushima daiichi and the lessons learned since march 11th. >> as the work continues at fukushima daiichi to bring the crisis under control by january 2012, what is going well and what problems persist? >> we are doing our work according to the roadmap tepco and the government announced. and what is going well is the cooling of fuel core and spent fuel pools. actually the unit two's spent fuel pool is now cooled by the special equipment. that is the most advanced work. on the other hand, treatment of stagnant water is the challenge of us. and another challenge is how to overcome high radiation dose in every place of the plant. so that's the very difficult thing we have to deal with. >> the seriousness of what happened on march 11th only became public months after the accident. why did the government and tepco let people know about the best-case scenario rather than the worst? >> i don't think that is the case. actually, we have been trying to let our people know, let other countries' people kno

we have more from junko noda. what's your take on the results of the meeting? >> the iae received a mandate to strengthen its role in securing nuclear safety but member states have to agree on concrete measures. some emerging countries that plan to introduce nuclear power plants aren't enthusiastic about paying the cost about associated with strengthening safety standards, so at this stage it's unclear if the iaea can come up with an effective action plan. >> you know, japan is being singled out as the country with the multitude to strengthen nuclear safety standards. tell us about the savings that are under way. >> the discussions were started this week to change the current safety guidelines. one problem with the guidelines is the lack of preparation for the loss of all power sources. right now they say utilities don't have to consider this because power lines are expected to be restored shortly after an earthquake but at fukushima daiichi the quake cut off the external power supply and then the tsunami disabled emergency generators. another problem is the la