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In this episode Click comes from Paris. Spencer Kelly investigates Le French tech, including the world's largest startup incubator being built in a disused railway terminal. He also looks into Drivy - AirBnB for cars - and Agricool, who are building farms in shipping containers. Jonathan Blake reports on the rise of electronic voting, which is being embraced in some countries such as Estonia and treated with caution elsewhere, including in France. Sumi Das reports on marijuana breathalysing tech from California. The device is adapted from a piece of cancer-detecting nanotechnology developed by Stanford University. Back in France, we look at how one candidate has used a 3D projection of himself to appear to audiences across France simultaneously. And Dave Lee reports on a new camera capable of live green-screening which is being developed by Facebook.