On a gut level at the very least, the girls are old enough to sense that they're being exploited and abused. I hope somebody outside the family and racist social network can help them (and others like them), especially since the broadcast has put a spotlight on the situation. On another note, Primetime runs stories like this to push people's buttons and get ratings.
Anyway, there are some positive forces out there too, such as tolerance.org and the Southern Poverty Law Center,
http://www.splcenter.org/center/torg/toler.jsp They both have links to resources for teaching about hate/bias and civil rights.