Responding to a large-scale study from the Guttmacher Institute showing that the vast majority of Americans do engage in premarital sex – “which calls into question the federal government's funding of abstinence-only-until-marriage programs for 12- to 29-year-olds,” as the study’s author said – Assistant Secretary of Health and Human Services Wade Horn defended abstinence-only programs, claiming that by withholding comprehensive education on safer sex, the programs “help young people delay the onset of sexual activity” and thus reduce the contraction of sexually transmitted diseases.