Summits of the Group of Seven (G7) leading industrial nations often attract attention from protesters against global capitalism. The meeting opening today in Quebec City will have a vocal critic at the conference table in addition to those outside the venue, for President Trump has made a protest against the world trading system a central cause of his administration.
Ranged against Mr Trump will be the political leaders of all the other member states after his decision last week to impose steep tariffs on imported steel and aluminium. The US is wrong on this issue and it is important that the rest of the G7 stands firm in its criticism. Mr Trump may not be easily dissuadable from a course he has elevated into a