The Commie Kid is just like his pappy who loved Mao, Castro  and ilk.  

Pierre developed a taste for leading delegations to Communist countries. In 1960 this led  to Communist China. He participated in a Communist "victory celebration."
 
He met his idol, Mao Tse-tung. He collaborated on a book called Two Innocents In Red China. (Toronto, Oxford University Press, 1968.)

Trudeau describes his meeting with the Communist leaders like this: "...It is a stirring moment: these greybeards, in their ripe old age, embody today the triumph of an idea, an idea that has turned the whole world upside down and profoundly changed the course of human history."
Of the greybeard who has murdered more than 30 million Chinese, Trudeau says:"...Mao Tse-tung, one of the great men of the century, has a powerful head, an unlined face, and a look of wisdom tinged with melancholy. The eyes in that tranquil face are heavy with having seen too much of the misery of men."