An anti-nuclear demonstrator wearing a gasmask participates in a rally in the central business district of Sydney. An anti-nuclear demonstrator wearing a gasmask holds a mock missile at a rally in the central business district of Sydney August 6, 2005. Various anti-war groups held a rally and march through the streets of Sydney on Saturday commemorating the 60th anniversary of the atomic bombing of Hiroshima during World War Two. REUTERS/Tim Wimborne