U.S. Muslims desecrate American flag
http://www.freerepublic.com/focus/f-news/1419017/posts
So, are these folks simply 'exercising free speech', or would you consider them a threat to the realities behind the symbol?
Personally, I'd trust a Leftist flag-burner just about exactly as far as I'd trust these jihadis...
Both. But the first act is not the cause of the second. In fact, the first act actually aids in identifying them as a threat and thus makes it easier to defend those realities, which are far more important than the symbol.