DESCENDING into dirt, disease and uncertainty for a living is inhuman. Sanitation workers — the pillars of urban hygiene — often perish as poisonous gases fill their lungs. In eight months, 26 have died across the country. Karachi recorded eight losses, with 18 in Punjab. None of the workers were Muslim. In Pakistan, discrimination takes many forms. Among its most shameful manifestations have been job advertisements for sewerage management and garbage disposal. These have humiliated........

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