This weekend’s vote will fill some fairly inconsequential city positions. But how it plays out will indicate the strength of a rapidly broadening, national movement against the ruling United Russia party. China has long been repressing the Muslim-minority Uighurs; worryingly, it’s now starting to squeeze the Huis, more dispersed followers of Islam. And, a well-intentioned anti-knife-crime push in Britain draws ire after targeting fried-chicken shops.