tbh I assume, naively, that organisations that post official things would post them via wire service and twitter at the same time. You are right, it should be

tbh I assume, naively, that organisations that post official things would post them via wire service and twitter at the same time. You are right, it should be illegal, at the extremes it totally breaks down - "I announced it publicly" could legitimately be "I stood at the back door of Downing street and whispered it out loud".