Kenya opposition leader calls for calm in slum hit by deadly violence

By George Obulutsa and Duncan MiririNAIROBI (Reuters) - Kenyan opposition leader Raila Odinga called for calm on Sunday as he visited a slum in the capital that was hit by violence when a political stand-off over a repeat presidential election fed into rising ethnic tensions.Clashes in Kawangware and in a village in western Kenya following Thursday's vote were the first signs that face-offs between Odinga supporters and the police might eventually morph into neighbors turning against each other.