Original title: Out of 15M brackets, only 1 remains to win Warren Buffet's $1B March Madness bet
http://sports.yahoo.com/blogs/ncaab-the-dagger/there-are-no-longer-any-perfect-brackets-left-in-the-billion-dollar-bracket-challenge-003853949.html
http://sports.yahoo.com/blogs/ncaab-the-dagger/there-are-no-longer-any-perfect-brackets-left-in-the-billion-dollar-bracket-challenge-003853949.html