OK, so it wasn't a world record. Or even Reese Hoffa's personal best. But the shot putter sure does a mean number on a Rubik's Cube. Hoffa was at the U.S. Olympic Committee's media summit Wednesday because he's the reigning outdoor world champion in shot put and former indoor world champ. But he showed off one of his many other talents, taking less than two minutes to unscramble the multi-colored...