Scare tactics: Are new cigarette labels effective?

The AP recently ran a story about an FDA proposal to use scary images of the effects of smoking on the labels of cigarette packages.

I am of two minds on this. On the one hand, I am a big fan of ANYTHING that might encourage even one person to quit smoking, as I think it is a really horrifically bad habit. On the other hand, though, I have a strong aversion to scare tactics, and this seems to fall pretty solidly in that category.

What do you think?