By Robert Chiarito CHICAGO (Reuters) - Scores of soccer fans, waving the American flag and wearing red, white and blue normally worn during July 4 cookouts, attended viewing parties across the nation for the women's World Cup final between the United States and Japan on Sunday. The game in Vancouver is a grudge match of sorts, since Japan won the 2011 World Cup over the Americans on penalty kicks after a 2-2 draw. Payback," snapped Karla Mejia, 42, who was attending a public party at Chicago's Lincoln Park, preparing to watch the match on a 19-by-33 foot, high-definition screen. More...