>> there's still so much we don't know. >> how could you not tell us? >> three identical strangers sunday 9:00 eastern on cnn. to make you everybody else... ♪ ♪ means to fight the hardest battle, which any human being can fight and never stop. does this sound dismal? it isn't. ♪ ♪ it's the most wonderful life on earth. ♪ ♪