France is preparing for another wave of mass protests, and authorities are taking no chances this time. Roughly 70,000 members of the security forces are being deployed across the country ahead of the demonstrations. The scale of the mobilisation says a lot about how much trouble officials expect on the streets. In Nancy, shop owners did not wait to find out. They nailed wooden boards over their shop windows, turning whole storefronts into shuttered frontages. Pictures from the city show rows of covered windows, a look usually reserved for storms rather than a planned protest. Commanders hope the sheer number of officers will keep the crowds in check, though past demonstrations have shown how quickly order can slip.