The Globe and Mail reports in its Monday edition that President Donald Trump's tariff threat is bluster because there is no way its smart phones could be made in the United States. Guest columnist John Turley-Ewart writes that Mr. Trump wants Apple's iPhones sold in the U.S. to be made in U.S. -- or face a 25-per-cent tariff. The response, that Apple can only produce its iPhones in China, is made plain in the remarkable book "Apple in China," by Patrick McGee. It reveals in disturbing detail the "Chinafication" of high-tech manufacturing founded on Apple know-how, billions in direct investment from Apple and Beijing's belief that "Without a strong manufacturing industry, there will be no country and no nation." The result is a low-cost manufacturing sector underwritten by the power of an authoritarian state that delivers a sophisticated and expanding managerial and engineering class atop a scalable, just-in-time, low-wage, low-skilled, low-rights, 300-million-plus floating work force. As Mr. McGee observed, not only do Americans not want these factory jobs, neither do the Chinese people. These jobs are sustained by the policies of Beijing that lets Apple exploit the desperation of millions of people from rural China.