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Martha O'Donovan, who was arrested over alleged subversive tweets about Zimbabwean President Robert Mugabe on Twitter, arrives at Harare Magistrate's Court in Harare, Zimbabwe, on Nov. 4. Jekesai Njikizana/AFP/Getty Images hide caption

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Jekesai Njikizana/AFP/Getty Images

South Africa granted diplomatic immunity to Zimbabwean first lady Grace Mugabe after she was accused of assaulting a young woman at a Johannesburg hotel. Above, Mugabe addresses a youth rally in June. Jekesai Njikizana/AFP/Getty Images hide caption

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Jekesai Njikizana/AFP/Getty Images