Old journalists say that if you speak the word 'Trafigura' three times, a lawyer appears in a cloud of sulphurous smoke; telling you not to write about it. This prophecy has come true for the Guardian, on whom everyone's favourite media lawyers Carter-Ruck have placed an unprecedented gagging order which, outrageously, bans them from reporting parliament - a spectacularly undemocratic tactic which as the paper point out calls "into question privileges guaranteeing free speech established under the 1688 Bill of Rights." The threats don't work of course; they never have. Not even in ancient times.