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b'Protesters returned to the streets of Khartoum this weekend, again with deadly consequences. We look back to last month\\u2019s violent crackdown, and consider Sudan\\u2019s troubled push for democracy. China\\u2019s swine-flu outbreaks threaten hundreds of millions of pigs\\u2014but might spark long-overdue reforms in the country\\u2019s pork industry. And, we examine San Francisco\\u2019s e-cigarette ban: if vaping is safer than smoking, should it be stubbed out?

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