critical. heat continues to buildle. talking about a potential or fear of the beginnings of a meltdown within the reactor, clearly you ve entered into a critical phase. if you re talking about what is crucial now, now is crucial. stan grant for us. thank you. the developments at the fukushima plant have reignites the fierce debate over the safety of nuclear energy. the citizen s nuclear information center is an avid anti-nuclear campaigner. the group wants a nuclear-free world. phillip white belongs to this organization. he is a nuclear expert and joins us on the phone from tokyo. thanks for joining us. i want to ask you, if things do get worse, even though each hour counts as they go by, if things get worse what do residents need to do to try to protect themselves? well, there are basically two things. it s better inside a building