Why Trudeau expanded immigration after 2015

Host Piya Chattopadhyay speaks with The Globe and Mail's Tony Keller about how Canada's desire for immigrants gave way to debate, writer Bill Bryson brings wonder to science in a refresh of his seminal work A Short History of Nearly Everything, former national security analyst and policy advisor Dennis Molinaro explores the complicated history of Canada-China relations, and comedian Charles Demers finds the funny in Canadianisms that define us – from goose poop to butter chicken.

Discover more at https://www.cbc.ca/sunday