Why do I think they are trying to make it sound like the USA is as overtaken by Islam as the UK?
Since America is so much larger than the UK...it wouldn't be as apparent if a significant number of Americans became Muslims..and started influencing the life around them accordingly.
Remember, the al-Queda handbook that was found in Afghanistan said..that the goal is to bring down America from within....which talking people into converting..and then having them enter schools, businesses...and politics...seems to be the perfect plan.