Politicians upstage livestock in Paris farm show tradition

It's known as the world's biggest farm, but the International Agricultural Show in Paris isn't just a chance for livestock to strut their stuff: it's also a proving ground for France's political elite. Presidents from de Gaulle to Hollande have made high-profile visits filled with tastings and handshakes, and in this election year eyes are on the candidates as they try to show how down-to-earth they can be.