SuSu's Hubby: what Peace said, both times.

Some excerpts from a blog with links to relevant citations:

Beginning in 1995, Title V of the Social Security Act has provided funds for states willing to implement abstinence-only sex-education classes. Among other things, qualifying curricula are required to instruct students that there are "social, psychological, and health gains to be realized by abstaining from sexual activity," that "sexual activity outside of the context of marriage is likely to have harmful psychological and physical effects," and that "abstinence from sexual activity is the only certain way to avoid out-of wedlock pregnancy, sexually transmitted diseases, and other associated health problems."...

From 1996-2001, 49 states received funds under Title V, the holdout being California, which already had its own abstinence-only curriculum. In 2002, a study by the Kaiser Family Foundation found that about a third of secondary schools in the U.S. were then practicing abstinence-only sex education.

Starting in 2002, many states began dropping out of the program, citing research showing that — compared to comprehensive sex education — abstinence-only programs do not delay first sexual experience in most students and have little to no long-term effects on sexual intentions and activity, other than a slightly increased tolerance for teen pregnancy.

Furthermore, some critics accused the federally funded programs of spreading misinformation and lies, such as that "condoms fail in 31% of cases of heterosexual sex," "touching someone's genitals can make you pregnant," "50% of all American teenage gay men are HIV positive," and "HIV can pass through condoms because the latex used in condoms is porous."

Currently, only 28 states are receiving Title V funds, with two more (Iowa and Arizona) planning to drop out after this fiscal year. Says a spokesman for the governor of Ohio, which dropped out in 2007: "We've spent millions of dollars on such education since Ohio first started getting grant money in 1998. If the state is going to spend money on teaching and protecting kids, the governor believes it's better to spend it in a smarter, more comprehensive approach."

However, Governor Palin — apparently undaunted by mere research (just the kind of new leadership we need!) recently announced that Alaska would be applying for federal abstinence-only sex-education funds for next fiscal year, saying "the explicit sex-ed programs will not find my support." That quote is from a survey given in 2006...