PIETERMARITZBURG - 25 May 2007 - Sipho "KK" Nkosi, the South African Democratic Teachers Union KwaZulu-Natal provincial secretary addresses the more than 20,000 government workers who staged a protest march in Pitermaritzburg on Friday. Government has offered publice sector workers a 6 percent increase, but the workers are demanding 12 percent and are threatening to go on strike from June 1..Picture: Giordano Stolley/Allied Picture Press