China appeared to intensify its punitive campaign against Canada over the arrest of a top Chinese technology executive as a second Canadian working here was detained by security officials and dropped out of contact with his government. The second case involves Michael Spavor, a writer and entrepreneur who operates a cultural organization that promotes trips into North Korea. A newspaper linked to the provincial government in Liaoning, along the border with North Korea, reported that he had been detained by security officials there on charges of “engaging in activities jeopardizing China’s national security.”
