By Protesters march with flares during a demonstration in Marseille, southern France, on Tuesday. Daniel Cole/APPARIS — Protests and strikes against unpopular pension reforms gripped France again Tuesday, with many thousands marching and the Eiffel Tower closed and police ramping up security amid government warnings that radical demonstrators intended "to destroy, to injure and to kill. Veran insisted, however, that France remains a welcoming place for all non-royal visitors