Abstinence-Only programs and science.

As Chicago Trib points out today - the drop in teen pregnancy of the last five years is a good thing - and it probably has something to do with teaching kids that not having sex is cool too - or at least in their self-interest.

But that doesn't mean overzealous advocates of abstinence get to make stuff up to help their argument. When you make stuff up that is then refuted, it makes it seem like the truth isn't good enough. Stick with the facts. It's quite good enough for your purposes.