I think the whole penultimate paragraph in 1 is misleading and NPOV. What about Basque in the South-West, isn't that a non-official celtic language? Shelta? Cornish? What about other minority languages, for example Lorrain?  We need to change it to make clear:  * Whether Breton is treated differently from other non-French languages in France * How much of this the Loi Toubon defines * How much of this the Constitution defines  We should talk about how this is different from Welsh in the UK or other celtic languages.  