"How will Canada receive them and what will we do with them?" Well, I think that we should start by nailing them to a barn door for 2 or 3 weeks, and then ask them what their future [Canadian-oriented] plans are. Either they behave, upon oath,  like law-abiding Canadians, or if they resume any criminal activities their special prison will be very, very high in the Canadian Arctic with hungry polar bears as their guards. e.g. there is no excuse for becoming a Daesh 'jihadi' slaughtering scores of thousands of innocent people.