Yet another fire breaks out at nuclear reactor

Another fire broke out Wednesday at an earthquake-crippled Japanese nuclear plant that has sent low levels of radiation wafting into Tokyo and triggered international alarm, suggesting that the crisis may be slipping out of control.
Academics and nuclear experts agree that the solutions being proposed to contain damage to the Daiichi reactors at Fukushima, 240 km (150 miles) north of Tokyo, are last-ditch efforts to stem what could well be remembered as one of the world's worst industrial disasters.
While public broadcaster NHK said flames were no longer visible at the building housing the No.4 reactor of the plant, Japanese TV pictures showed smoke rising from the facility at mid-morning (1000 local, 0100 GMT).
It is not realistic now to think that the No. 4 reactor at a quake-damaged nuclear power plant in northeastern Japan will "reach criticality", the chief government spokesman said on Wednesday.
Japan is trying to avert a catastrophe after fire broke out at the No. 4 reactor.
Experts say spent fuel rods in a cooling pool at the No. 4 reactor could be exposed by the fire and spew more radiation into the atmosphere. Operator Tokyo Electric Power said it was considering using a helicopter to dump boric acid, a fire retardant, on the facility.
Japan's Nuclear and Industrial Safety Agency said two workers were missing after blasts at the facility a day earlier blew a hole in the building housing the No. 4 reactor.
In the first hint of international frustration at the pace of updates from Japan, Yukiya Amano, director general of the International Atomic Energy Agency, said he wanted more timely and detailed information.
"We do not have all the details of the information so what we can do is limited," Amano told a news conference in Vienna. "I am trying to further improve the communication."
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