...De Beers deliberately misled the government about the task of repairing its enormous mine dumps along the West Coast,...So says a report submitted to government this week. It also says De Beers...downplayed possibly "devastating consequences" related to the...fenced-off dumps. The report was co-authored by two environmental watchdog groups, Conservation South Africa and The Bench Marks Foundation. Its release coincides with the death this week of two illegal miners in a makeshift tunnel at the company's Namaqualand mine. Community leaders say the deaths could have been avoided had De Beers listened to warnings...But De Beers spokesman Tom Tweedy denied any wrongdoing by the company. He said...the company was awaiting details from the authorities on the illegal miners' deaths.