Not that I'm disagreing with you, but in reading that I didn't see anything saying what their controls were. Were they comparing abstinence only programs (or programmes) to comprehensive sex-ed programs, or to no sex-ed program at all, or both? Maybe I'm just not so good at reading sciency things, but the only place where I saw them mention controls was in saying that their data were measured against "various controls." While I know that abstinence only programs are crap, I'd be really interested to know if they are better than no program at all, and how much better comprehensive programs are.

I'd also be vaguely curious to sit in on an abstinence only sex-ed class at some point since coming from California, the state that said "fuck you, we don't need your money" to the federal gov't, I've only experienced the comprehensive kind. Then again, it would probably just piss me off.