We've had gays in the Israeli Defence Force for years and it has never really been an issue. I'm not sure I understand the rational for excluding them in the US -- assuming the US still lets in men who pick up women in bars, sleep with prostitutes, etc.
Alter Kaker wrote: "Assuming the US still lets in men who pick up women in bars, sleep with prostitutes, etc."
FYI, they are no longer allowed to sleep with prostitutes. If caught, they can be disciplined. There are medical as well as public perception issues with allowing military members to openly use prostitutes.