The wife of the President of the United States is unelected, and has no official role and should stay in the background. Michelle's lack of class, experience and knowledge on the international scene is embarrassing to the USA.
Of course the Queen should be respected with this protocol of centuries. What is more disturbing is watching Obama bow to the King of Saudi Arabia...no doubt thanking him for thr millions in campaign contributions he forked over last year. Now what will Obama do for the King? No US president has EVER bowed to a King.