Cash crunch casualties: India's wedding industry suffers from currency changes
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India's cash crunch hits the country's massive wedding industry - but could be a breakthrough for new types of payment. We speak to one company that's reaping the benefits. Also in this programme, we take a look at biometrics - how paying with a selfie or a retina scan could soon become the norm. Plus, we'll be finding out what the latest roadblock for the Dakota Access Pipeline means for the US oil industry.