South Africa’s 'Marikana' massacre: Victims remembered at politically charged rally

On tonight's show: As South Africans in the country's platinum mining belt mark the fourth aniversary of the Marikana killing, investigators from MSF warn of the dangers faced by women living in these communities. One in four say they've been raped. Also, a day after his election victory, Zambia's president calls for calm as supporters of his rival take to the streets. Finally, Gabon's main opposition parties have thrown their weight behind former foreign minister Jean Ping.