After decades of controversy, Congress recognized the right of blacks and women to serve in the US military, perhaps making the armed services America's most thoroughly integrated institution – except when it comes to sexual orientation. While some states have legalized same-sex marriage, federal law says gays and lesbians can serve only if they're not "out." President Obama and Defense Secretary Gates want Congress to end "Don't Ask, Don't Tell," the political compromise signed by Bill Clinton. John McCain and others see a threat to "combat effectiveness." We hear what a crucial Pentagon survey reveals about the rank and file. If it's not repealed in Congress, what about the courts?