To mark France's recognition of a Palestinian state, 50 town halls across France have hoisted the Palestinian flag onto their facades. It's a defiant move against a government order by hardline Interior Minister Bruno Retailleau that ordered them not to do so, saying that displaying flags violates the French "principle of neutrality." But what is this principle, and what does the law say about the flag flying? Vedika Bahl explains in this edition of Truth or Fake.