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One year to the day since the latest outbreak of Ebola was confirmed in eastern Congo, a third victim has been identified in the crowded border city of Goma.

Democrat presidential hopefuls have been facing off in a second night of debates. The party’s front runner – former Vice-President Joe Biden shared the stage with California Senator Kamala Harris and ten others.

Engineers have created a biometric contact lens which can zoom in or out when the wearer uses their eye muscles or even, for example, just blinking twice.