"No matter how silly the idea of having a queen might be to us,
as Americans we must be gracious and considerate hosts."
-Frank Drebbin (Leslie Nielson), The Naked Gun
So, on BBC World News America last night, the big story was the Michelle Obama/Queen Elizabeth II "hug heard 'round the Palace" - even though the consensus among the reporters from BBC America seemed to be "eh, Her Majesty didn't seem to mind." There's an article from Time.com
expounding upon the hug - and denoting that the Queen touched the First Lady's back first. If you haven't seen the video of it, the way they were standing, this touch naturally lead to the sideways, intercontinental embrace.
My personal favorite line in the story, though, was this: "Less explicable was when President George W. Bush winked at the Queen." His legacy lives on!
Now, I don't know all of the politics and whatnot in the UK, but in my almost complete ignorance, I must say that a hug between national leaders can only be a good thing. Furthermore, and this is a complete assumption on my part, I would reckon the Queen lives a pretty isolated existence. Perhaps a hug every now and then would be welcome in such circumstances.
But, that's just me - your opinions may vary.