Second reactor in trouble at Fukushima site

News reports are coming in that Unit 3 at the already critical Fukushima nuclear power plant site is in trouble. The Japanese nuclear safety agency says that the cooling system has malfunctioned at Unit 3 - this follows the explosion and possible meltdown at Unit 1. No further details are available although the power company says it is endeavoring to release pressure from the reactor after the cooling system failed. Reuters.