It's a reshuffle that will resonate well beyond France's borders. François Hollande is shaking up his cabinet with an eye to his re-election bid next year. The former prime minister Jean-Marc Ayrault returns to replace Laurent Fabius as foreign minister; the Greens are back in an extended cabinet. But change is also about policy, not just for the current government, but for a Republic currently embroiled in a bitter argument over the enshrinement of anti-terror measures in the constitution.