[drinian]

It's highly likely that there is a genetic component to addiction.

This sounds like eugenics -- and the Wikipedia entry on the charity [0] is also somewhat disturbing. However, is this really any different from handing out free condoms?

I'm not sure.

[0] https://secure.wikimedia.org/wikipedia/en/wiki/Project_Preve...

[gaius]

The genetic component doesn't make you stick a needle in your arm in the first place - so it is irrelevant.