NAIROBI, KENYA -- The streets were nearly deserted in the Kenyan capital of Nairobi last Friday evening. After voting in the country's most important presidential and parliamentary elections in nearly a quarter-century, most people retreated to their homes. The brave went to their local bars to watch the results come in on national television. A handful of popular clubs were sprinkled with the normal crowd of young professionals, expatriates and Asians. Yet amid the prevailing silence in this normally bustling East African metropolis of 3 million, where mansions abut slums and Mercedes swerve among street kids, was a sense of anxiety at what the election results might bring.