Zimbabwe's opposition says it will bring the government to its knees with Kenya-style mass protests if President Robert Mugabe carries out extensive plans to rig tomorrow's presidential and parliamentary elections. But Mugabe has vowed to use the army to crush any demonstrations and warned Zimbabweans not to waste their votes on opposition candidates who would never be allowed to take power. Mugabe, 84, would struggle to extend his 28-year rule in a clean election, amid widespread hunger, mass unemployment, 100,000% inflation and a currency that devalues so fast that the few people with jobs are paid in billions of Zimbabwe...