Witt v. Department of the Air Force, 527 F.3d 806 (9th Cir. 2008) is a federal lawsuit that challenged the constitutionality of 10 U.S.C. § 654, the law, since repealed, that excluded openly homosexual people from serving in the United States military, commonly known as "Don't ask, don't tell" (DADT). The United States Court of Appeals for the Ninth Circuit ruled in 2008 that under Lawrence v. Texas DADT constitutes an "[attempt] to intrude upon the personal and private lives of homosexuals" and it is subject to "heightened scrutiny", meaning that the government "must advance an important governmental interest, the intrusion must significantly further that interest, and the intrusion must be necessary to further that interest."