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BRAZIL

Petrobras, the state-owned oil group of Brazil, has completed investigation into the sinking of its biggest offshore oilrig, which many say is a cover-up operation. Ten workers had died and a few seriously injured during the incident that took place on March 20, 2001 (see Down To Earth , Vol 9, No 23, April 30, 2001, p12). The Petrobras report offers theories, but no conclusions about the cause of the incident. "The exact cause of the incident will never be known since the rig is on the ocean floor,' claimed Carlos Heleno Neto Barbosa, head of the investigating team.

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