While the US Olympic hockey team's 5-3 victory over Canada was impressive, it pales in comparison to America's defeat of the Soviet hockey team in the 1980 Lake Placid Olympics, which occurred 30 years ago today.
It's the sporting event which gave America hope during some of the darkest days of the Cold War. Sports Illustrated's cover contained a photograph similar to the one on the to the left with absolutely no caption at all, the only time the magazine has ever done so. According to the editors, the picture spoke for itself.
Bonus trivia--the 1980 US/Soviet Union hockey game popularized the famous "U-S-A" chant.