Too many immigrants from one source, too few from another, could be sufficient to change the balance of power within a generation. In a way, the Prime Minister thought, we have our own apartheid policy, though fortunately the barriers of race and colour are set up discreetly and put into effect beyond our borders, in Canadian embassies and consulates overseas. And definite as they are, at home we can pretend they do not exist.

Some people in the country, he knew, wanted more immigration, others less. The 'more' group included idealists who would fling the doors wide open to all comers, and employers, who favoured a bigger labour force. Opposition to immigration usually came from labour unions, given to crying 'unemployment' each time immigration was discussed, and failing to recognize that unemployment, in some degree at least, was a necessary economic fact of life. On this side also were the Anglo-Saxon and Protestant segments – in surprising numbers – who objected to 'too many-foreigners', particularly if the immigrants happened to be Catholic. Often it was necessary for the Government to walk a tightrope to avoid alienating one side or the other.

He decided this was a moment to be blunt. 'Your department has been getting a bad press, Harvey, and I think a good deal of it is your own fault. I want you to take a tighter hold of things and stop letting your officials have so much of their own way. Replace a few if you have to, even the top; we can't fire civil servants but we've plenty of shelves to put them on. And for God's sake keep those controversial immigration cases out of the papers! The one last month, for example – the woman and child.'

'That woman had been running a brothel in Hong Kong,' Harvey Warrender said. 'And she had VD.'

'Perhaps that isn't a good example. But there've been plenty of others, and when these sensitive cases come up you make the Government look like some heartless ogre, which harms us all.'