A newly engaged Yale graduate student is gunned down by an unknown attacker after a fender bender. Was it extreme road rage or was he targeted? "48 Hours" correspondent Anne-Marie Green reports.
President's Trump's designs on acquiring the world's largest island "one way or the other" have stirred feelings of betrayal among Danes and Greenlanders. Mo Rocca gives us a history lesson about an island that is 80 percent covered in ice.
