The research on adolescents’ sexual behavior shows that comprehensive sexuality education programs that discuss the appropriate use of condoms do not accelerate sexual experiences. On the contrary, evidence suggests that such programs actually increase the number of adolescents who abstain from sex and also delay the onset of first sexual intercourse. Furthermore, these programs decrease the likelihood of unprotected sex and increase condom use among those having sex for the first time.
To put your second link in context, the author is a conservative Catholic writer who calls gay marriage "a threat to religious liberty" and accuses contraception supporters of "Condomism" (sounds like Communism, get it?) The first Google result for her name is her home page, titled "Dr. Jennifer Roback Morse - Your Coach For The Culture Wars," though if you click the link it appears the site is defunct.
Here's what she says about childhood obesity:
"My amateur diagnosis is that the childhood obesity problem is a direct result of the whole constellation of social changes initiated by the sixties. Working mothers, feminism and zero population growth all played a role."
I hardly think the APA committee is unbiased, but I think I'll stick with them over "Your Coach For The Culture Wars" who blames childhood obesity on the sixties.
http://www.mathematica-mpr.com/abstinencereport.asp
Lack of contraceptive education effectiveness http://www.mercatornet.com/articles/does_anything_work_in_se...