Abstinence, being faithful and correct and consistent condom use are the only ways to successfully reach everyone when discussing HIV prevention. I believe that the abstinence message alone does not solve the AIDS epidemic.
I'm not convinced that abstinence-only education works.
Recommending or insisting on abstinence has been completely ineffective.
To preach abstinence, I think, is absolutely not the right message to give to kids.
Putting the 10 commandments up to prevent crime is like putting 'Employees must wash hands' up to keep the piss out of your burger.
If crime is going down, you shouldn't be increasing resources for crime prevention. Or you should be taking note of what has worked and concentrate the crime-prevention methods on policies that have a track record of success.
Just saying no prevents teenage pregnancy the way 'Have a nice day' cures chronic depression.
We're not going to find a magic cure for cancer. We've got to prevent it.