crisis in japan. there's one positive sign tonight, but several new troubling developments. the international atomic energy agency reports japanese officials have finally succeeded in a running a new source of electricity to the fukushima nuclear complex where all six reactors still have cooling problems. we have no indication as of yet that major new pumping or cooling operations are under way. in an alarming turn, the temperatures in the spent fuel storage areas in reactors five and six are on the rise, and the utility says it is racing to add water to those tanks. the lack of electricity has forced desperate measures. at first glance this looks impressive. helicopters flying over the nuclear site. four runs in all now, we're told. those choppers stayed at higher altitudes because of the dangerous radiation levels.