It is impossible to leave Canada without promoting its finest son. The great Bruce Cockburn has put into context some of the most profound emotions we can experience and yet is also able to give frightening colour to political trauma.

This morning we heard a young man in Winnipeg describe his experience of having come from Guatemala and returning there each year. This year he arrived just after a public lynching in the town square. He spoke movingly about the need for change in some of the neediest countries of the world.

It brought to mind Cockburn’s powerful indictment of the US-backed Contras who caused such horrors in Central America in the 1980s. If I had a rocket launcher expresses the dilemma of a Christian pacifist faced with the massively cruel injustice of state-backed violence: