Don't ask, don't tell

"Don't ask, don't tell" is the common term for the U.S. military policy which implements Pub.L. 103-160 (10 U.S.C. § 654).

The act prohibits any homosexual or bisexual person from disclosing his or her sexual orientation, or from speaking about any homosexual relationships, including marriages or other familial attributes, while serving in the United States armed forces.

http://en.wikipedia.org/wiki/Don't_ask,_don't_tell