What does Bristol Palin's pregnancy say about the effectiveness or usefulness of...?

Try saying "just say no" to a (literally) starving person standing at a food buffe and see how well it works. That's about how well "just say no" works for today's teens. With TV, movies, and media dishing out daily doses and desire, it's downright irresponsible parenting to think that your kid will obey your silly "just say no" retoric.