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Tech entrepreneur Martín Varsavsky, who made Madrid's coronavirus contact-tracing app, believes it should have been designed to gather more of people's personal details. Sophie in 't Veld, a Dutch member of the European Parliament, has a different point of view. She argues privacy's a human right that should not be undermined by the apps. They shared their views with Digital Planet reporter Jennifer O’Mahony. (Image: Coronavirus contact-tracing app Credit: Getty Images)