today in the class all classmate talked about immigtion to Canada which is factor positive or negative.  some of studentes belived that if  refugees come to Canada , so we won't have any safty and sequrity in it. one of  them explained about estimate postion in paper which josef gave to us. On the other hand other one told that terrorists come to canada every year and people are worried about that.   some of classmates said their ideas about immigration and discribed a positive or negative  point.