The Wall Street Journal is gated, key points of the article:
The U.S. is increasing intelligence efforts in Greenland as President Trump has expressed interest in the island.
Intelligence agencies are to identify Greenland and Denmark residents who support U.S. objectives.
Trump has said he wants to take over Greenland for security purposes.
"Step Up Spying on Greenland"
Hide a microphone anywhere its warm. How hard could it be?
