...Anglo Platinum (part of Anglo American), said...it shut a shaft at its largest operation on Wednesday after one worker was killed...Following the death...[National Union of Mineworkers] asked the government to prosecute mining firms for the accidents, saying "a genocide" was unfolding at mines...Thabo Gazi, chairperson of the Council of Mining Safety and Health...said prosecutions were difficult to enforce. His department...was bogged down with countless court appeals as companies resist paying fines. [also refers to Northam Platinum, Gold Fields]