because as a race, humans aren't as evolved as they think they are.
it's all because we all are always afraid of accepting that we committed a mistake....
Wonderful movie, yet I agree also sad.<br />
2 movies that i found to even more disturbing were Schindler's List, and Mississippi Burning
i love that movie
Misanthrope here, but I'd have to say the answer is, "People suck."
Then I'd have to admit the world isn't so bad
Good movie though