He is a high profile target. The President of the United States travels with that kind of security when he goes to Detriot.
Last time Bush was in Detriot I don't recall him wearing body armor and being shoulder to shoulder with a hundred armed soldiers brandishing their weapons - did I miss something?
But more interesting than that little piece of non-sense is the fact that no Americans stroll outside the green zone in Baghdad - high value target or not.
That should shock nobody - except for McCain it would appear.
It was a hyperbole, but you get the point I'm sure. And I know plenty of Americans who have left the Green Zone and come back alive... in fact, all of them that I personally know with the exception of one. But then again, I wouldn't stroll into Compton either.