Taken from CNBC’s Daily Open, our international markets newsletter — Subscribe today Markets on Tuesday flashed the classic signs of a "sell America" trade , as investors recoiled from escalating risks tied to Washington's foreign policy. Greenland's Prime Minister Jens-Frederik Nielsen drove home the point when he said late Tuesday that "the other side" — seemingly alluding to the U.S. — has not ruled out the use of military force to take control of the island. Major U.S. indexes on Tuesday