Core Viewpoint - The U.S. Trade Representative Jamison Greer stated that President Trump’s threat to impose tariffs on certain European countries due to the Greenland acquisition plan is an appropriate action [1] Group 1: Tariff Justification - Greer believes that this is a reasonable use of tariffs [1] - He indicated that this action falls within the intersection of economic and national security, using tariffs as a tool [1]