Young and happy, pilgrims from the four corners of the Earth are gathered in Spain for the Roman Catholic church’s third World Youth Day, presided over by Pope Benedict XVI. However many in Spain are irritated at the invasion of the happy clappers at a time of austerity and a decline in church attendance. Jeune et heureux, les pèlerins venus des quatre coins de la Terre sont réunis à l'Espagne…