If no muslims were there at all, I predict the number of terror attacks would decline drastically... ;)
Each country has unique circumstances. Pakistan, Nigeria, Kenya, etc. are members of the Commonwealth of Nations, and therefore have easy entry into the UK.
Italy has water on 3 sides. Likewise Spain. Likewise Greece. All members of Schengen Area. That means once a person gains entry to the EU, they move around the member nations with little or no border hassles.
Like with the US, many of these terrorists are "home grown," but white guilt prevents authorities coming down, often until too late.
My understanding is also this: Resources are simply not enough, to watch each one of them 24/7/365.
And of course political correctness and white guilt prevents simply rounding them up.
So a nation observes the terrorists' "civil and human rights," until it is too late.
I have a couple that are repeat clients, and great folks. Christian medical doctor from Egypt, married to a dentist from Jordan. They confided with me recently, to never trust a muslim. They said they came here, to have personal and religious freedom, and they are worried about it here, now. They didn't plan on that, btw.
