The latest report about the effects of tariffs on steel manufacturing and production is in dispute. The advocates say that the effects are small and will increase modestly over time. The manufacturers, who are closest to the situation, say they have had to make adjustments already that are costing the industry in many ways. Yahoo Business, picked up this article from Reuter' writer, Anthony Aeppel, March 18, 2019: U.S. Heavy Equipment Makers Feeling Pain From Tariffs, Disputes: Report.