This is what happens when, under the misguided notions of "tolerance" and "diversity," immigrants do not experience significant pressure to assimilate. Even the US will have issues, as we also have greatly relaxed assimilation pressure over the past 50 or so years. From melting pots to balkanized messes. Liberalism is a mental disorder.
I think burkas should be illegal. Their faces are hidden and there is no way to identify them--they all look alike. You do not know who is under the burka, male or female, nor are the cameras that are all over America (for our protection) able to help if a crime is committed. Finally, I agree with those on this site that believe the reference should be changed to CULT. All good and bad are in this game. You can bet the good will obey the bad when they are "made a deal they can't refuse." We are simply allowing the numbers to grow in our own country. Shame on us.