Three quarters of Americans can correctly identify two of Snow White's seven dwarfs while only a quarter can name two Supreme Court Justices, according to a poll on pop culture released on Monday. According to the poll by Zogby International, commissioned by the makers of a new online game on pop culture called "Gold Rush," 57 percent of Americans could identify J.K. Rowling's fictional boy wizard as Harry Potter, while only 50 percent could name the British prime minister, Tony Blair. The pollsters spoke to 1,213 people across the United States. The results had a margin of error of 2.9...