A cure for Ebola?

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 facial recognition technology spreads, so do ideas for subverting it. Kenneth Cukier hosts. Runtime: 20 min

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