This is a good one; I hadn't seen it before. Via Heidi Harley at Language Log:
Reader Émilie Pelletier writes in to say,
Your post on Language Log today reminds me of something I read in Morvan Lebesque's Comment peut-on être Breton? I don't remember the exact words, but he was mentioning the big support France was giving, in the 1970's, to French-speaking Quebecers so that they could speak their own language. When Bretons said to the French government that their own situation was very much like that of Quebecers, the French authorities' alleged response was: "But noone is preventing you from speaking French!"