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In Nairobi one woman's online post about harassment on the city's private-hire minibuses or Matatus, has triggered dozens of similar accounts and complaints on social media of robbery, harassment and dangerous driving. We hear from the woman behind the #StopMatatuMenace hashtag campaign who thinks she has a solution to the problem.

Also, the story of Emmet Till – an African American teenager whose murder in 1955 in a racial attack galvanized the American civil rights movement - is back in the news. A recent picture showing his memorial sign in Mississippi riddled with bullet holes has gone viral on Facebook and sparked a fundraising campaign to replace the sign.

Produced by Shoku Amirani.

Image caption: Matutu minibus / Image credit: Tony Karumba / Stringer / Getty Images