I have just been looking at an aerial photo of the plant (by AFP):

http://news.bbcimg.co.uk/media/images/51672000/jpg/_51672113_011525965-1.jpg

You might be able to work in what's left of reactor 1. The reactor 3 building is filled with smoking rubble from this morning's explosion. Any reassurances about the state of the inner containment are pure guesswork when nobody can get near it to see.