Trump again having designs on Greenland comes after the president-elect suggested over the weekend that the U.S. could retake control of the Panama Canal if something isn't done to ease rising shipping costs required for using the waterway linking the Atlantic and Pacific oceans.

President-elect Donald Trump has once again repeated his desires for U.S. territorial expansion. In a message delivered on Christmas Day, Trump took aim at the Panama Canal and Greenland, while also addressing Canadian Prime Minister Justin Trudeau directly.