It isn't about the welfare check. It never was.It isn't about sexual permissiveness, or personal morality, or failures in parenting, or lack of family planning. All of these are inherent in the disaster, but the purposefulness with which babies make babies in places like West Baltimore goes far beyond accident and chance, circumstance and misunderstanding. It's about more than the sexual drives of adolescents, too, though that might be hard to believe in a country where sex alone is enough of an argument to make anyone do just about anything.In Baltimore, a city with the highest teen pregnancy rates in the nation, the epidemic is, at root, about human expectation, or more precisely, the absence of expectation.