Radiation levels around troubled nuclear plant drop consistently.

Self-Defense Forces (SDF) jet powered fire truckSelf-Defense Forces (SDF) used helicopters to drop water on the No.3 reactor yesterday and fire trucks were used to spray water on the overheating spent fuel pool into the early hours of today.
 agency also said Friday the radiation reading at 5 a.m. Friday came to 279.4 microsievert per hour, compared with 292.2 microsievert per hour at 8:40 p.m.
About 64 tons (58 tonnes) of water was discharged by helicopters and fire trucks of the SDF, as well as by a water cannon truck of the Metropolitan Police Department.
Engineers were able to lay an external grid power line cable to Fukushima‘s reactor No.2 late yesterday, the International Atomic Energy Agency (IAEA) said, boosting hopes that the reactor’s failed cooling system could be restarted and allow water to be pumped over fuel rods to curb overheating