Shamefully Truncated Abstinence Programs

The Bush administration is now funding a sexual abstinence program as part of its contribution to fighting AIDS in Africa. Abstinence is also a mainstay of its efforts against both youth pregnancy and sexually transmitted diseases within the US. So that is consistent.
But there are rumors that backsliders in the administration want to restrict all the abstinence programs to unmarried couples only! What kind of consistency is that?