Though "safe sex" methods should be discussed (condoms, dental dams, etc.), abstinence should still be mentioned as the only 100%-effective preventive measure for unwanted pregnancy and/or STD/STI. The smart people will get it, and at least stick to pleasuring themselves rather than getting into it with a partner, but if there are people that just can't exercise any self-discipline or restraint, at least they'll know how to keep from destroying lives with the consequences of their actions (while recognizing the risk that other preventive measures just aren't 100% effective). I agree that it shouldn't be a surprise that abstinence-only sex education is a contradictory and confusing message in today's culture which sends every conceivable message to the contrary. The modern marketing industry would be in ruins if self-discipline were to be encouraged and cultivated as a societal norm.
Sex education should give a full treatment of the topic, covering everything from the use contraceptive measures to the advantages of abstinence, as well as describing in great detail the consequences of an unwanted pregnancy. Students should also be educated on abortion methods and the fact that a baby in the womb can feel pain as soon as its brain and nervous system is active.
Society gets so stuck on "either this or that" arguments, when the best way to treat the subject is to treat the WHOLE subject. As in, don't leave ANYTHING out, for anyone's sake.
Addendum: Let's also avoid category errors here. What we're discussing is how teens should be taught to deal with their sexual urges before they are able to make responsible decisions and choose a lifelong partner. Teaching "abstinence" in this case would not mean lifelong abstinence, but abstinence during the time period before the students would be able to deal with the consequences of their actions, if a pregnancy is produced. Most people who would argue against the inclusion of abstinence doctrine in a high-school-level sex education course in any quantity do so by misrepresenting abstinence doctrine at its extreme. The other misrepresentation of abstinance doctrine that is rampant in this debate is that it is only the doctrine of religious 'fanatics'. Like I mentioned above, abstinence during the time period in question is the only 100%-effective way of preventing unwanted pregnancy. This is not to say that it's 'easy' -- a great deal of self-discipline would be required. But in my view, it does represent the ideal. Sex education should be formulated with the understanding that few will be interested in this ideal, however. All the same, please don't insult the intelligence of myself or others by thinking you can get away with either of these misrepresentations.
Tangent:
However, what is equally disturbing is that 11 year old girls are getting pregnant. Before we start passing the blame to Bush, as the OP suggests, where are these kid's parents?
Recently, in Indiana, there was a fight to pass legislation that would make it possible children under 18 years of age to have an abortion without parental consent. What I wonder is,
why would anyone want to do that? Parents who are AWOL are one thing...but trying to remove the parents entirely is quite another.