What should nightclubs be doing to prevent sexual harm to its patrons?

New research indicates that nightclubs could be doing more to prevent sexual harm in their venues. In this edition of The Conversation Hour we talk through what sorts of of things venues could be doing to decrease the risk.Also in this edition, keeping pets safe in high density housing, just how much will the metro tunnel reshape the way we travel in the years ahead plus, we speak to a linguist why MUTT could catch on as a nickname for the tunnel.