Aug 14 2019 22 mins 1
Two treatments for Ebola have emerged from a clinical trial in Africa. Scientists estimate that sea-levels across the globe will rise by 50cm or so in the next 80 years; in some places they could go up by twice as much. Are governments and businesses prepared to deal with the rising tides? And, as face-recognition technology spreads, so do ideas for subverting it. Kenneth Cukier hosts
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