MILAN, Feb 20 : The U.S. men's hockey team is one win from ending a decades-long Olympic gold-medal drought, 46 years after they delivered one of the most iconic moments in sports history at the 1980 Winter Games.  The Americans throttled Slovakia 6-2 in the Milano Cortina Olympic semi-finals on Friday to book their berth in the gold-medal game where they will clash with familiar foes Canada. They have a chance to summon echoes of the "Miracle on Ice," when a group of amateur and collegiate