Found a 60 minutes segment about this topic.
60 Minutes "Don't Ask Don't Tell" (1)
60 Minutes "Don't Ask Don't Tell" (2)
But we've already got more than enough people who tend to have a pure hatred towards gay people.
As pointed out in the videos above there is still sexism and racism in the military but these things are not tolerated. hating someone for there skin color or thinking a women's place is at home is still out there but you are not allowed to promote this during service.
Here's a list of places that do and don't have policies about serving and one sexual orientation.
Allow gays to serve openly, just to list a hand full.
Argentina, Australia, Austria, Belgium, Bermuda, Brazil, Canada, Czech Republic, Denmark, Estonia, Finland, France, Germany, Ireland, Israel, Italy, Lithuania, Luxembourg, Netherlands, New Zealand, Norway, Peru, Philippines, Romania, Slovenia, South Africa, Spain, Sweden, Switzerland, England, Uruguay
Those that don't allow gays serving openly, again listing a few.
Cuba, China, Egypt, Greece, Iran, Jamaica, North Korea, Russia, Pakistan, Saudi Arabia, Serbia, Singapore, South Korea, Syria, Turkey, United States, Venezuela, Yemen
It's interesting how the U.S. is on the list with mostly the same countries the U.S. often looks down on about there human rights policies. Yet here we are right along side them on this one.
Just something to think about.