Greenland’s Prime Minister Jens-Frederik Nielsen said on Tuesday he was “sad” about US President Donald Trump’s renewed expression of interest in acquiring the Arctic territory.For all the latest headlines, follow our Google News channel online or via the app.Nielsen shared his comments on Facebook after Trump reasserted on Monday that the United States needs Greenland for its national security and said a special envoy he has appointed to the vast, mineral-rich island would “lead the charge.”Read more:Fuming Denmark summons US ambassador over Greenland envoy