Japan radiation leaks feared as nuclear experts point to possible cover-up

"It's impossible to get any radiation readings," said John Large, an independent nuclear engineer who has worked for the UK government and been commissioned to report on the accident for Greenpeace International.

"What we are seeing follows a clear pattern of secrecy and denial," said Paul Dorfman, co-secretary to the Committee Examining Radiation Risks from Internal Emitters, a UK government advisory committee disbanded in 2004.


"The Japanese government has always tended to underplay accidents. At the moment the Japanese claims of safety are not to be believed by anyone. The health effects of what has happened so far are imponderable. The reality is we just do not know. There is profound uncertainty about the impact of the accident."

The Japanese authorities and nuclear companies have been implicated in a series of cover-ups. In 1995, reports of a sodium leak and fire at Japan's Monju fast breeder reactor were suppressed and employees were gagged. In 2002, the chairman and four executives of Tepco, the company which owns the stricken Fukushima plant, resigned after reports that safety records were falsified.