The background on that whole crazy “locks on pedestrian bridges” thing: Symbols of undying love — though not in the view of Parisians — adorn Pont de l’Archevêché, in front of Notre Dame. … On some of the city’s most iconic bridges, thousands of visitors left small padlocks, neatly attached to the metal railings. Once discreet, doing their deed at night, visitors soon acted in broad daylight, in pairs, photographing…