Bearded Bruce, I read your post, with the story of the Canadian immigrant who murdered his daughter for not conforming to his particular Islamic beliefs in my mind. I am afraid that the British problem (young Muslims developing violent extremist beliefs) will surface here as well.

I have seen nothing from moderate Muslims here in Canada- and they are here, I have worked with some- condemning that zealot's horrible act.
The action of the girl's brother in trying to obstruct justice points up the need for moderates to speak out and to act to prevent their children from taking up views which cannot in any way be tolerated in Canada or any free society.
I know that there is a risk of retribution- as British author Salman Rushdie and the teacher in the Sudan found out- but moderates acting in concert with the support of the leader of their mosque should keep the risk to an acceptable level.

This is not to say that 'christians' in Canada are free of restrictive and oppressive views, although killing is not condoned. We know several Hutterite young men and women who have left their colony and are trying to make their own way in Canadian society. These young people have been rejected not only by the colony but their parents as well, a pitiful outcome of their search for freedom. No member of the colony is allowed to speak to them or contact them in any way. The young people of a colony receive no education past junior high level, which severely restricts their opportunities if they leave the colony. It is a difficult path. I have heard them lament sadly the loss of all family contact.
The Hutterites are a good and productive people, but they are a non-voting isolate which will never be fully integrated into Canadian society.

Recently, a leader of a branch of Mormonism in the States which practiced polygamy was sentenced for child abuse- there is a similar branch in British Columbia whose polygamous practice also involves very young 'marriage', but their colonies are tolerated by Canadian authorities.

How much deviation from Canadian society is permissible? I am afraid that 'multiculturalism' is a carpet that may hide scorpions.