"[The provision] says those thoughts you've been thinking all along, you're allowed to keep thinking them," a Defense Department official said. But critics like Americans United aren't so sure. Mother Jones reported that detractors said the new measure could allow an armed forces doctor to refuse to screen a female service member for cancer because she had engaged in premarital sex. In addition, those who feel homosexuality is a sin could refuse to serve alongside gays or lesbians.
MORE: https://au.org/blogs/wall-of-separation/bad-defense-maneuver-military-spending-bill-provision-could-foster
See also...
Defense Bill Includes Broadened Version of Todd Akin's Anti-Gay Provision
http://www.motherjones.com/politics/2012/12/defense-bill-todd-akin-anti-gay-provision