Trivial though it may seem, this brouhaha highlights a great flaw in the American system: You elect a monarch. In olden days and on the old continent, criticizing the monarch might limit your life chances. So too, alas, in the American capital today, as the arbiters of acceptable Washington indecency—that is, the Davids Broder and Gergen—decry your shortage of civility and surfeit of vulgarity.

The convention that Thou Shalt Not Speak Ill of the President in His Presence elides the great difference known to every Briton—that between insulting the head of state and insulting the mere head of the executive branch of government.

Insulting Queen Elizabeth is one thing; insulting Gordon Brown is practically an obligation. Disrespecting the former is an act of treason; disrespecting the latter and his office, a necessity: Every Wednesday, Brown must endure Prime Minister’s Questions, during which his enemies in Parliament grill him. Prime Minister’s Questions may not be the be all and end all, but it affords an opportunity for “telling truth to power” that does not exist in the regal American system.