UK radiation jump blamed on Iraq shells

More on Depleted Uranium...this time from the UK's The Sunday Times:

RADIATION detectors in Britain recorded a fourfold increase in uranium levels in the atmosphere after the “shock and awe” bombing campaign against Iraq, according to a report.

Environmental scientists who uncovered the figures through freedom of information laws say it is evidence that depleted uranium from the shells was carried by wind currents to Britain.

Government officials, however, say the sharp rise in uranium detected by radiation monitors in Berkshire was a coincidence and probably came from local sources.
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Impossible! Is it?