Some scholars and journalists see multiculturalism as a threat to a strong, unified Canadian society -- an anxiety that Carleton University's Phil Ryan calls "multicultiphobia."
He argues that although such discourse is often marred by important errors of fact and interpretation, news coverage and parliamentary debates reveal the persistent influence of these concerns.
Does multiculturalism discourage adaptation and encourage "cultural walls" between Canadians? Does it promote an "anything goes" relativism? What do we -- both as supporters and critics of multiculturalism -- wish to make of Canada's ethnic diversity?
Mr. Ryan was online Monday to answer these questions and others. You can replay the chat in the live blog box below. If you're viewing this on your smartphone, you'll want to click here.